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

<passage>:
mean, how do we know Superior is maintaining the same position up here The town of Superior, Ohio, certainly was living up to its name! In what Radio messages stated simply that Superior had seceded from Earth. But Don Cort, stranded on that rising town, was beginning to suspect that nothing was simple about Superior except its citizens. Calmly they that they know. Maybe we'll begin to get some answers. Or, if not answers, then transportation." "Transportation?" Alis squeezed the arm she was holding. "Why? Don't you like it here?" "If you mean don't I like you, the answer is yes, of course I do. But if I don't get out of this handcuff soon so I can take a bath and get into clean clothes, you're not going to like me." to Cort: either find a way to anchor Superior, or spend the rest of his "You're still quite acceptable, if a bit whiskery." She stopped, still she said, "before you deteriorate." Superior had been. They were in the midst of an extremely pleasant kiss when the brief case at the end of Don's handcuff began to talk to him. stop at Superior at 11:58. That seemed to fix the time of the Nor had there been any defense plants in Superior that might have blown A United Airlines pilot found Superior early on the morning of November course to avoid it. He noted with only minimum satisfaction that his A few minutes later he had relayed a message from Superior, formerly of It said that Superior had seceded from Earth. Don had taken a passing interest earlier in the evening asked, "Why did stop at Superior on this run." given her. Her glance upward at that moment interrupted his examination, which had been about to go on to her figure. Later, though, he was able to observe that it was more than adequate. "Will we be here long?" Don asked the conductor. He didn't want to miss Don hesitated, shrugged at the redhead, said, "Excuse me," and followed sat in the dark, hissing steam. Don made his way up to the locomotive fireman. Don followed them. They had tramped a quarter of a mile along Standing on tiptoe and repressing a touch of giddiness, Don looked over the mayor wouldn't look foolish the next morning, not knowing his town "What's the population of Superior?" "Does Superior have an airport?" Don asked. "I've got to get back to—to was frowning. "Are you thinking," he asked, "that Mayor Civek was perhaps just a little less than completely honest with us?" "I'm thinking," she said, "that I should have stayed with Aunt Hattie " Mister Cort!" she said, annoyed. "You know as well as I do that " Places to sleep," she corrected. She looked angry. "Of course," Don said, puzzled by her emphasis. "Come on. Where they put you, you'll probably be surrounded by co-eds, even if I could get out of Don Cort had slept, but not well. He had tried to fold the brief case to Alis—that's A-l-i-s, not A-l-i-c-e—Garet. Are you with the FBI? Or did you escape from jail?" "How do you do. No, just a bank messenger. What an unusual name. fork without knocking things off the table with his clinging brief case. "Here, let me cut your eggs for you," Alis said. "You'd better order down from ducks. How do you plan to get down from Superior?" "Scarcely fell Superior Sentry Don blinked at the headline: "Ed Clark's something of an eccentric, like everybody else in Superior," Alis said. Don read the story, which seemed to him a capricious treatment of an apparently grave situation. advised not to. It's a long way down. Where Superior was surrounded by Ohio, as usual, today Superior ends literally at the town line. the same exemption would apply to a dubious individual bent on investigating.... Don skimmed the rest. "I don't see anything about it being deliberate." Alis had been creaming and sugaring Don's coffee. She pushed it across to him and said, "It's not on page one. Ed Clark and Mayor Civek don't get along, so you'll find the mayor's statement in a box on page three, Mayor Claims Secession From Earth today that Superior has seceded from Earth. His reasons were as vague as The "reasons" include these: (1) Superior has been discriminated against (b) lacks space to publish Don said, "I'm beginning to like this Ed Clark." "He's a doll," Alis said. "He's about the only one in town who stands up to Father." "Does your father claim that Earth?" "Not to me he doesn't. I'm one of those banes of his existence, a skeptic. He gave up trying to magnolize me when I was sixteen. I had a me all kinds of embarrassing questions to ask Father. I asked them, being a natural-born needler, and Father has disowned me intellectually ever since." emphasizing her good figure. To a male friend Don would have described kissed. All in all she could have been the queen of a campus much more densely populated with co-eds than Cavalier was. "You may call me Alis," she said. "And I'm nineteen." Don grinned. "Going on?" "Don's the name I've had for twenty-six years. Please use it." "Gladly. And now, Don, unless you want another cup of coffee, I'll go "On such short notice?" Don was intrigued. Last night the redhead from the club car had repelled an advance that hadn't been made, and this morning a blonde was apparently making an advance that hadn't been "I'll admit to the double entendre ," Alis said. "What I meant—for now—was that we can stroll out to where Superior used to be attached to train was standing there with nowhere to go. It had been abandoned "What's happening?" he asked when he saw them. "Any word from down there?" "Not that I know of," Don said. He introduced him to Alis Garet. "What are you going to do?" "What I do?" the conductor asked. "You can go over to Cavalier and have breakfast," Alis said. "Nobody's going to steal your old train." Superior's water supply?" Alis shrugged. "All I know is you turn on the faucet and there's water. Let's go look at the creek." "I should think it'd be all dried up by now. I'm going to have a look." "Don't! You'll fall off!" "I'll be careful." He walked cautiously toward the edge. Alis followed him, a few feet behind. He stopped a yard from the brink and waited for a spell of dizziness to pass. The Earth was spread out like a topographer's map, far below. Don took another wary step, then sat down. "Chicken," said Alis. She laughed uncertainly, then she sat down, too. his right hand closed over the brink. For a moment he lay there, panting, head pressed to the ground. "How do you feel?" Alis asked. "Scared. When I get my courage back I'll pick up my head and look." Alis put a hand out tentatively, then purposefully took hold of his ankle and held it tight. "Just in case a high wind comes along," she said. tossed it to him. It rolled and Don had to grab to keep it from going over the edge. Alis gave a little shriek. Don was momentarily unnerved and had to put his head back on the ground. "Sorry," she said. "It isn't? Then where is it going?" "Why? How?" out of play, Don thought) and on to the edge again. "What's the other source, besides the faucet in your bathroom?" Don

<question>:
Based on the information in the text, why would Don choose to leave Superior?

<options>:
A He had to deliver the handcuffed briefcase.
B He had a family to return to that would be expecting him at home.
C He feared the future of Superior.
D His wife would not appreciate him spending time with Alis.

<answer>:

A