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

<passage>:
block away from his house. It was then that he realized something unusual must have occurred. An orange patrol car of the security police was parked at his front door. And something else was happening too. His house was dancing. residence frisking about on its foundation. It was such a strange sight His pockets were picked eleven times. From a prone position on his miniscule front lawn, Fownes watched as begin with for a person living in a domed city. He was thinking so deeply about it that it never occurred to him that entirely too many people were bumping into him. He was thinking about Optimum Dome Conditions (a crisp 59 degrees, a mildly dessicated 47%) when a bogus postman, who pretended to be reading a postal card, jostled him. In the As he forced his way back to the doorway needles of rain played over his face and he heard a voice cry out from somewhere in the living room. "Help!" Lieutenant MacBride called. Standing in the doorway with his wet hair plastered down on his "What's happening?" MacBride yelled, crouching behind the sofa. fragments showering harmlessly on the city from time to time. Dome weevils, their metal arms reaching out with molten glass, roamed the huge casserole, ceaselessly patching and repairing. from the blackness of the living room. "These are not rather than skill that enabled the police to maintain such a tight surveillance on him, a surveillance that went to the extent of getting Optimum Dome and chemically analyzed the contents of his pockets before returning Conditions!" the voice wailed. "The temperature is not his fingerprints off the postman's bag, and which photographed, X-rayed that was always 47%, by weather that was always Optimum. It was this with photographs had been prepared and was being read by two men in an orange patrol car parked down the street. "Are you going to make it stop or aren't you!" MacBride yelled. "You'll have to tell me what you did first!" "I told particularly virulent strain of pneumococcus under his microscope. Lanfierre's job was to ferret out aberration. It couldn't be tolerated within the confines of a dome. Conformity had become more than a social force him not to touch that wheel! Lanfierre. He's in the upstairs bedroom!" Fownes took the wheel. It was off a 1995 Studebaker. "I'm not sure what's going to come of this," he said to Lanfierre with an astonishing amount of objectivity, "but the entire dome air supply is now coming through my bedroom." Recruiting Lieutenant MacBride from behind his sofa, the men carefully edged out of the house and forced the front door shut. Dome Conditions of the bright avenue. "I never figured on this trite. Then a fine robust freak came along and the others—the echoes—refused to believe it. The lieutenant was probably on the point of suggesting a vacation. Lieutenant MacBride pursed his lips. there's a whole crowd of people in there waiting for a signal—as if they all had something important to say but had to close the windows first so no one could hear. Why else close the windows in a domed city? "No, you don't need a rest," MacBride said. "You're starting to see Lanfierre and Lieutenant MacBride leaned against their car and waited, dazed. The street was deserted and quiet, not a movement, not a sound. MacBride and Lanfierre both leaned forward, as if waiting for the they both looked back at the dancing house. water." The lieutenant had picked up the dossier. He thumbed through the pages now in amazement. "Where do you get a guy like this?" he asked. "Did you see what he carries in his pockets?" "And compasses won't work on this street." watching the house with a consuming interest. They sat there smoking in silence and every now and then their eyes shoes. He hadn't seen the patrol car and this intense preoccupation of his was also responsible for the dancing house—he simply hadn't noticed. There was a certain amount of vibration, of course. He had a bootleg pipe connected into the dome blower system, and the high-pressure air caused some buffeting against the thin walls of the house. At least, he called it buffeting he'd never thought to watch from outside. It was replaced by an illusion. Or, as Fownes hoped it might appear, the illusion of the domed city vanished and was replaced by a more satisfactory, and, for his specific purpose, more functional, illusion. He rubbed his chin critically. It fingers marching up and down your spine? He went downstairs to watch out the living room window. This was important He watched with folded arms, considering how he would start. Too formal. They'd be looking out at the romantic high-pressure air from the dome blower rushed in, slowly opening the Studebaker valve wider and wider.... idea what people are saying? They're all saying I'm a cannibal! I rob my husbands of their life force and when they're empty I carry their bodies outside on my way to the justice of the peace." "I don't seem to mind the air." She threw up her hands. "You'd be the worst of the lot!" She left the table, rustling and tinkling about the room. "I can just hear them. Try they'll find out? I found out and you can bet they always tell the truth. To be completely honest with you, Mr. Fownes, it wasn't the old customs at all standing between us, it was air. I can't have another man die on me, it's bad for my self-esteem. And now you've "And of course when they do find out and they ask you why, Mr. Fownes, lost, you and I." "Not if we could leave the dome," Fownes said quietly. "That's impossible! How?" In no hurry, now that he had the widow's complete attention, Fownes Breathing somewhat faster than usual, the widow rested her chin on her the dome." "I see." " that somewhere out in the space and the roses and the moonlight, the sleeping equinox yawns and rises because on a certain day it's back to the table, standing directly over Fownes. "If you can get us outside the dome," she said, "out where a man stays warm long enough to government publications and censored old books with holes in What do you make of reading inscriptions on a tombstone. stood in the center of the room, leaning on a heavy knobbed cane. He glanced around at the group almost complacently, and waited as Humphrey Fownes squeezed into an empty chair. "We live in a dome," the leader said, "for lack of something. An invention! What is the one thing that the great technological societies before ours could not invent, waited, uncomfortable in the tight chair, while the others struggled obtained the insight. "If a sound foreign policy can't be created the only alternative is not to have any foreign policy at all. Thus the movement into domes began— by common consent of the governments . This is known as self-containment." Dialectically out in left field, Humphrey Fownes waited for a lull in the ensuing discussion and then politely inquired how it might be arranged for him to get out. "Out?" the leader said, frowning. "Out? Out where?" "Outside the dome." "Oh. All in good time, my friend. One day we shall all pick up and leave." life in the Open Country. Food, clothing, a weapon perhaps? What else? Have I left anything out?" The leader sighed. "The gentleman wants to know if he's left anything out," he said to the group. Fownes looked around at them, at some dozen pained expressions. window and turning his back quite pointedly on them.

<question>:
Why are the police studying Frownes so intently?

<options>:
A They are threatened by his knowledge of and curiosity about the ancients
B They are suspicious of the odd behavior occurring within and around his home
C They believe he is responsible for the increased frequency of falling glass
D They believe he is an informant to enemy forces outside of the Dome

<answer>:

B