Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
so much as a landslide to bring the Fault to the attention of the It is not really surprising that it took so long to figure out the connection. The population of the states affected was in places as low as five people per square mile! The land was so dry it seemed The even more ironic solution to the problem began in the summer of The report was—no fire at all. The rising cloud was not smoke, but It may seem odd that the simplest explanation was practically not Edison were shaken to pieces by incredible earthquakes, whole bus- and most violent and widespread earthquake North America—probably the scene of disaster. "No one here has ever seen anything like it." And affected area. "When it's over you can come back and pick up the miles away, the now-familiar lurch and steady fall had already sent the danger of rock slides from minor quakes. The geologists went home There wasn't much to wait for. The news got worse and worse. The Platte down. They danced "like sand in a sieve" dry, they boiled into rubble. Telephone lines, railroad tracks, roads snapped and simply disappeared. Virtually all east-west land communication was suspended and the President declared a national emergency. By 23 September the Fault was active well into Wyoming on the north, and rapidly approaching the border of New Mexico to the south. Trinchera and Branson were totally evacuated, but even so the over-all Tremendous fissures opened up perpendicular to the Fault, and a general subsidence of the land was noticeable well into Kansas and Nebraska. The western borders of these states, and soon of the Dakotas and Oklahoma as well, were slowly sinking. On the actual scene of the disaster (or the scenes the land shuddered downward in gasps and leaps. Springs burst to the surface in hot geysers and explosions of steam. assured that everything possible is being done." But what could be floods, in the usual sense. The water moved too slowly, spread itself Perhaps the North Platte disaster had been more than anyone could take. 193 people had died in that one cave-in. Certainly by 7 October it had to be officially admitted that there was an exodus of epic proportion. Nearly two million people were on the move, and the U. S. was faced with a gigantic wave of refugees. Rails, roads and air-lanes were an American Airlines plane was wrecked inexorable descent. a punctured balloon," read one newspaper report. "Like a cake that's was a sigh and a great cloud of dust, and Oklahoma subsided at the seemed to rise a little like the edge of a hall carpet caught in a draft, and sank. So did the entire Mississippi and Alabama coast, at about the same moment. The tidal wave which was to gouge the center from the U. S. marched on the land. From the north shore of Lake Ponchartrain to the Appalachicola River in Florida, the Gulf coast simply disappeared. Gulfport, Biloxi, Mobile, Pensacola, Panama City: 200 miles of shoreline vanished, with over two and a half million people. An hour later a wall of water had swept over every town from Dothan, Alabama, to Bogalusa on the Louisiana-Mississippi border. Then, as ominous creakings and groanings of the earth announced the One head of the wave plunged north, eventually to spend itself in thirst of the soil temporarily broke the furious charge. deluging Hobart and almost all of Greer County. Despite hopeful announcements that the wave was slowing, had virtually stopped after inundating Oklahoma City, was being swallowed up in the evacuating the entire area between Colorado and Missouri, from Texas to North Dakota. Lubbock, Texas, went under. On a curling reflex the tidal wave blotted out Sweetwater and Big Spring. The Texas panhandle disappeared in one great swirl. Whirlpools opened. A great welter of smashed wood and human debris was the cliffs of New Mexico and fell back on itself in foam. Would-be the water broke furiously on the newly exposed rock. It was the most terrible sound they had ever heard. collision between two solid bodies. We couldn't see for over an hour, along the line of the original Fault. Irresistible fingers closed on Sterling, Colorado, on Sidney, Nebraska, on Hot Springs, South Dakota. The entire tier of states settled, from south to north, down to its eventual place of stability one thousand feet below the level of the new sea. precarious havens for half-drowned humanity. Waves bit off a corner of Missouri, flung themselves on Wichita. Topeka, Lawrence and Belleville were the last Kansas towns to disappear. The Governor of Kansas went down with his State. Virtually the only people saved out of the entire population of Pierre, rescuers. The barn, luckily collapsing in the vibrations as the waves bore down on them, became an ark in which they rode out the disaster. But such lightheartedness and such happy endings were by no means typical. The world could only watch aghast as the water raced north western Nebraska and the Dakotas. But when the waters came to rest along what is roughly the present shoreline of our inland sea, it was estimated that over fourteen million people had lost their lives. No one could even estimate the damage to property almost the entirety of eight states, and portions of twelve others, had simply vanished from the heart of the North American continent forever. It was in such a cataclysmic birth that the now-peaceful Nebraska Sea Today, nearly one hundred years after the unprecedented—and happily unrepeated—disaster, it is hard to remember the terror and despair of those weeks in October and November, 1973. It is inconceivable to think of the United States without its beautiful and economically essential curve of interior ocean. Two-thirds as long as the Mediterranean, Dakota. What would the United States have become without the 5600-mile coastline of our inland sea? It is only within the last twenty years that any but the topmost layer of water has cleared sufficiently amelioration of climate brought about by the proximity of a warm sea? The now-temperate state of Minnesota (to say nothing of the submerged Dakotas) must have been Siberian. From contemporary accounts Missouri, water's edge? Or incredible Colorado, where the morning skier is the Now, ending as it does at Memphis and drawing its water chiefly from the Appalachian Mountains, it is only a slight remnant of what it was. of Manitoba and crossroad of a nation. The political situation has long been a thorny problem. Only tattered remnants of the eight submerged states remained after the flood, but none of them wanted to surrender its autonomy. The tiny fringe of Kansas seemed, for a time, ready to merge with contiguous Missouri, but following the lead of the Arkansas Forever faction, the remaining population decided to retain political integrity. This has resulted in the continuing anomaly of the seven "fringe States" represented in Congress by the usual two Senators each, though the largest of them is barely the size of Connecticut and all are economically indistinguishable from their neighboring states. Fortunately it was decided some years ago that Oklahoma, only one of the eight to have completely disappeared, could not in any sense be considered to have a continuing political existence. So, though there are still families who proudly call themselves Oklahomans, and the Oklahoma Oil Company continues to pump oil from its submerged real estate, the state has in fact disappeared from the American political scene. But this is by now no more than a petty annoyance, to raise a smile dead, untold property destroyed—really offsets the asset we enjoy Unimaginable too would have been the general growth of population in the states surrounding the new sea. As the water tables rose and manufacturing and trade moved in to take advantage of the just-created axis of world communication, a population explosion was touched off of

<question>:
What's the most unexpected result of the disaster?

<options>:
A Because of the new sea, there are no more rivers to trade by.
B Even though millions of lives were lost, the economy is now booming due to the sea.
C Coast-to-coast travel via buses and trucks is now a thing of the past.
D Many of the previous states have dissolved.

<answer>:

B