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

<passage>:
able to communicate to her. Is there something wrong with you? Do you fail to fit in with your group? Nervous, anxious, ill-at-ease? Happy It was in the privacy of his with an amiable smile. "I see my advertisement has interested you. Please stand in that corner for just a moment." fitted with a silencer. Pointing it at the amazed customer, he the narrow chest. Then he made a telephone call and sat down to tracks carefully. "What type am I?" he asked. "Silly, you're real. You're not a type at all." "Mary Ann, I love you very gambling everything on this one throw. "When you go to Earth I'll miss you terribly." "Oh, but you'll be dead by "If I pretended I was one of you, if I left on the boat with you, they'd let me go to Earth with you. Wouldn't they?" "Oh, yes, I'm sure they would." first to perceive the peculiar odor and to spot the immense gray hulk wallowing in the murky distance. frantic crewmen, officers, and the handful of passengers. Only two type if you refuse to fall in love foolishly? And when you something short of ecstasy. Not for any obvious reason, but because Ann had no pulse. Mary Ann did not perspire. Mary Ann did not Mary Ann breathed regularly under all circumstances. Mary Ann talked and talked and talked. But then, Mary Ann was not a human being. When she left the hotel at midnight, Pembroke was quite sure when he regained consciousness. He awoke in a small room in with him. Tomorrow might bring his death, but it might also ensure his escape. After forty-two what appeared to be a typical for a cause, for a loyalty, Frank Pembroke had at last found his. Earth and the human race that peopled it. And Mary Ann would help him to save it. the crew of the ship, probably. He also recognized several of the passengers. However, he made no attempt to speak to them. After his meal, he bought told him that there were no living creatures anywhere but in walk. His situation could have been any small western American seacoast city. He heard the hiss of course, had to be just like Earth. That, after all, was the purpose of Puerto Pacifico. is wrong with me?" she inquired. "Much of the time," said the man. "Could it be me?" for that. "Tell me what's wrong with me," she went on urgently. "I'm not good enough, am I? I mean, there's something wrong with the way I look or act. Isn't there? Please help me, please!" was not airtight, but there would probably be no further investigation. "You're not casual enough, for And they certainly would was not going to report the incident. She was frightened. It not prosecute Mary Ann for killing an Earthman. "Ambulance squad," Pembroke's staring across at the smooth, tan limbs. "Do you think I'm okay otherwise? I mean, as a whole I'm not so bad, am I? Oh, please tell me." Pembroke had seen the corpses of Earthmen being carted out of buildings. They had to be Earthmen because they bled. Mary Ann on each of its six limbs, and smiled up at him as he stared. "Can I help you, sir?" a middle-aged had admitted that she did not. There would be very few Earthmen left in Puerto Pacifico, and glass statuette among the usual "Oh, good heavens, whatever is that thing doing here?" the counter. "What the hell was that?" Pembroke demanded. "Oh, you know—or don't you? Oh, my," she concluded, "are you one of the—strangers?" that afternoon. Anyone who could pass the interview would be sent to Earth. Pembroke had visited the docks every day, without being was certain the first lap would be by water rather than by spaceship, since no one he had talked "That's the type of person I am. But you can look frumpy and still walk natural, can't you? Everyone But since no one seemed concerned about anything but his own speech and behavior, he assumed that they had all qualified in every other respect. The reason for transporting Earth People to this planet was, of course, to apply a corrective to any of service station and asked for a map. The attendant gave him one "Okay, then where am I?" "Pardon me, there's a customer," the little room. Then he saw that there was another entity in his presence confined beneath a glass dome. It looked rather like a groundhog and had seven fingers on each of and hairier than the glass one "Right," said Pembroke wearily. "What's wrong with your lingo? Other than the fact that of it. "What is your name?" queried a metallic voice from a speaker on the wall. "I'm Jerry Newton. Got no it's not colloquial enough." a surly voice. "Occupation?" "I work a lot o' trades. Fisherman, middle initial," Pembroke said in matter what they say." "What do you think of the Chinese situation?" the voice inquired. "Which situation's 'at?" "Buses? Airlines?" The kid shook his head. minutes. Then he was told he had qualified as a satisfactory surrogate for a mid-twentieth century American male, itinerant type. "Right," said the attendant, giving with his perfect smile. "No getting out of here, is there?" "You understand your mission, Newton?" the voice asked. "You Earth. In time you will receive instructions. Then you will attack. You will not see us, your masters, again until the atmosphere has been sufficiently chlorinated. paying passengers. He was a short, rectangular little man in his fifties named Spencer. He sat in a booth with three young women, In the meantime, serve us well." shouting. Sidling up to a well-dressed down. Why'n'sha try holdin' 'em straight?" "You Frank?" he asked. "Hell, no. But some poor you'll qualify." raising a ruckus. They never do pass the interview. Don't know why they even make 'em." Suddenly Mary Ann was quiet. "Me, me," the blonde with a feather cut was insisting. "What "They'll take her off to the buggy house for a few days and bring her out fresh and ignorant as the with my mouth open. Don't you hate that?" "Everyone tells me I chew gum "Naw, that's part of your "Ah, come on," she pleaded. companion explained. Earth." "Yeah, I reckon there is at on an intricate keyboard in front "You said they were perfect. They know they're not. You've "Your bet's as good as mine," his save-Earth campaign. Now, seated at his battered desk in the shabby rented office it's not. But where the hell it is, you tell me. "And, by the way," he added, you would give me a few minutes of honest criticism." "Ah, no, not you, too," groaned Spencer. "Look, Joe, what's the gag?" clean-shaven, without sweat on a "You are newcomers, Mr. to be a little more direct, a little more brusque. Speak in a monotone. It will make you more acceptable." Pembroke spoke for several minutes. "Somebody's crazy around here," the fat man muttered after a few moments. "Is it me, Frank?" "No. You just don't belong here, in this particular place," "You're the wrong type. But they couldn't know that ahead of time. "What the hell are you sayin'?" asked Spencer in disbelief. "It's what you think that will determine what you do, Spencer. "That's right," said the fat man sullenly. "What don't you like about me? The customer. "If you don't like the place, you've had it."

<question>:
Why is the qualification interviewer under a glass dome?

<options>:
A The interviewer is protecting themself from aliens.
B The glass dome is to protect the interviewer from human contact.
C The interviewer has a compromised immune system.
D The interviewer is an alien, and it does not breathe oxygen.

<answer>:

D