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

<passage>:
always acted as if he had some secret, something to hide. Curtis recalled that Nelson and Androka had long conversations together—conversations which they would end abruptly when anyone else came within earshot. And Nelson had always been chummy with the worst naval organization. If you could silence all radio—silence of that sort would be deadly! trouble maker in the crew—Bos'n's Mate Bradford. fire— had all regained consciousness and were drying out in front of the big driftwood bonfires in the cove. Curtis got a glimpse of the design on which he was working, and his lips relaxed in a faint smile. Androka had arrived on board the Comerford the day before she sailed from Norfolk. With him came a boatload of scientific apparatus and equipment, including a number of things that looked like oxygen tanks, which were now stored in the forward hold. Androka had watched over his treasures with the jealous care of a mother hen, and spent hours crew was marooned on an islet, about a square mile in area One searching party reported finding the remains of what had been a daily in the room in the superstructure that had been assigned as his behind. Curtis was studying the wreckage of the wireless station, wondering if this might have been the source of Androka's zone of silence, when Ensign Jack Dillon came up to him. to move in these waters with such a possibility of error!" Nelson complied, and the throbbing drive of the engines lessened Androka decrees silence over the German airways! Try it! Try it, I say!" Bob Curtis stared at him, as if questioning his sanity. Then he conked. I was trying to see if something's wrong." high-powered commercial program in the higher reach, nor the chatter of ships or amateurs on the shorter. "Dead!" Androka muttered, with a bitter laugh. "Yet not dead, gentlemen! The set is uninjured. The waves are what have been upset. I have shattered them around your ship, just as I can eventually shatter "Your secrecy might well cost the United States navy one of its best light cruisers—and us our lives!" he said angrily. "We need that check by radio at once! If you're not talking nonsense, call off your dogs till we learn just where we are!" Androka held out his palms helplessly. "I can do nothing. I have given orders to my assistant that he must keep two hours of radio silence! I can get no message to him, for our radio is dead!" that they had been put ashore without food or extra clothing or winking at the two officers over Androka's discomfiture, and asked for the bearings. Commander and navigator had both scribbled verifications of the numbers. Ignoring the gibbering Androka, who was wailing his disappointment that messages had penetrated his veil of silence, they closed. The sky was again a blanket of darkness pouring sheets of rain at them. Nelson went back to the bridge, and Androka returned to the commander's tingle they sent through his inquiring fingers. Curtis left him at it, and went to rejoin Androka in the cabin. He "Those tanks you have below," Curtis said, "have they some connection with this radio silence?" A far-away look came into Androka's eyes. He did not seem to hear I'm afraid we're gored!" enveloped the entire cruiser. Looking over the side, he could no longer the Maginot Line, and of other forts in Holland and Belgium that had fallen before the early Nazi blitzkrieg, when their defenders found themselves struck numb and helpless by a gas that had been flooded into the inner compartments of their strongholds. There were those who said it was the work of sappers who had tunneled under the foundations, while others laid the induction of the gas to The vapor clouds that enveloped the stricken helpless. And then Curtis saw other forms flitting about the deck—forms that looked like creatures from another world, but he recognized them for what they were—men wearing gas masks. Nelson was nowhere in sight. The steersman lay in a limp heap beside the swinging wheel. Then a gas-masked figure appeared through the shroud of mist and steadied it, so that the cruiser would not be completely at the mercy of the wind and the waves. in a lazy, rolling motion, as she lay with her bow nosing into the sandbar at the entrance of the inlet. From her bridge, Navigating Officer Nelson watched the gas-masked figures moving about the decks, descending companionways—like goblins from an ancient fairy tale or a modern horror story. Nelson looked like gas mask. Nelson spoke in a low tone, his lips close to Bradford's ear. "It worked, Joe!" lowered accommodation ladder and transferred into waiting lifeboats. Nelson swore under his breath. "Reckon it'll take a couple of hours before the ship's rid of that damn gas!" Bradford shook his head in disagreement. "The old geezer claims he's got a neutralizing chemical in one of them tanks of his that'll clear everything up inside half an hour." "I'd rather get along without Androka, if we could!" Nelson muttered. "He's nothing but a crackpot!" "It was a crackpot who invented the gas we used to break up the Maginot Line," Bradford reminded him. "It saved a lot of lives for the Fuehrer World War. My mother committed suicide when she learned that we were me—to educate me in a military prep school, then send me to Annapolis, for a career in the United States navy—and no one suspected me. No one—" men—officers, seamen, mechanics, radio men, technical experts, all German naval reservists living in the United States, who've been sent here secretly, a few at a time, during the past six weeks!" unconscious crew and row them ashore. And when that task was completed, lifeboats began to come alongside with strange-looking radio equipment, and more gas tanks like those Androka had brought aboard the Comerford with him, and dynamos and barrels of lard oil for machine-tool lubrication. Our agents have been watching the convoys closely for weeks for just such a cargo as the Carethusia is taking over." "Can we trust Androka?" Nelson asked, with a sudden note of suspicion in his voice. "Yes," Brandt assured him. "Of all men—we can trust Androka!" has a daughter and other relations in Prague. He knows that if anything misfires, if there is the slightest suspicion of treachery on his part, his daughter and the others will suffer. Androka's loyalty is assured!" Nelson turned to watch the forward fighting top of the Comerford . The masked German seamen were installing some sort of apparatus up there—a strange-looking object that looked something like an old-fashioned trench mortar, and which connected with cables to the room that served as Androka's laboratory and workshop. Another crew was installing radio apparatus in the mizzentop turret. Descending a companionway to see what was going on below, Nelson found that portholes were being opened, and men were spraying chemical around to rid the below-decks atmosphere of the lethal gas that had overcome the Comerford's American crew. Returning to the bridge, he found that the tide in the inlet had risen considerably, and that the cruiser was riding more easily at her anchor. as if a wave of searing heat had scorched them. "A bit of a headache from the gas, but that's all. Any orders, sir?" which smelled strongly of treachery and sabotage. As he thought back, he realized that he have prevented the very purpose. The pieces of the picture fitted together like a jigsaw puzzle—Androka's zone of silence the bearings given by radio Navigating Officer Nelson's queer conduct. They were all part of a never trusted him. Nelson

<question>:
Was the gas incident deadly?

<options>:
A Yes, there were bodies scattered all over the ship.
B No, exposed crewmen were left nearly comatose.
C Yes, and only gas masks could help prevent death from the gas exposure.
D No, because Androka made sure to expose the crewmen to a nondeadly gas.

<answer>:

B