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

<passage>:
General Finogenov notified Major Winship that the underground blast was scheduled for the following morning. Major Winship, after receiving the message, discussed precautions with Major Winship attempted unsuccessfully to communicate with Base ," said Major Winship, exhausting his Russian. "Count down. Progress. When—boom?" "Is Pinov," came the reply. "Boom! Boom!" said Major Winship in exasperation. "When?" "Boom—boom!" said Pinov. "Oh, nuts." Major Winship cut out the circuit. "They've got Pinov on emergency watch this morning," he explained to the other Americans. "The one that doesn't speak English." "He's done it deliberately," said Capt. Wilkins, the eldest of the four Americans. "How are we going to know when it's over?" No one bothered to respond. They sat for a while in silence while the shadows evaporated. One by one they clicked on their cooling systems. for several minutes. "Ah, it's all Russian. Jabbering away. I can't tell a thing that's going on." no more. "Static?" "Nope." "We'll get static on these things." A small infinity seemed to pass very slowly. Major Winship shifted restlessly. "My reefer's gone on the fritz." probably over by now." "I'll try again," Major Winship said and switched to the emergency channel. "Base Gagarin? Base Gagarin?" "Is Pinov. Help?" "The shot probably went off an hour ago." "The static level hasn't gone up much, if at all." "Maybe," Lt. Chandler said, "it's buried too deep." "Maybe so," Major Winship said. "But we can't have the dome fall down of pressure, the inner lock slid open and Major Winship stepped into off balance. He stumbled against the table and ended up seated beside the radio equipment. The ground moved again. "Charlie! Charlie!" "I'm okay," Major Winship answered. "Okay! Okay!" "It's—" There was additional surface movement. The movement ceased. emergency channel. "Is Pinov," came the supremely relaxed voice. "Help?" Major Winship whinnied in disgust. " Americans: "Our comrades seem unconcerned." "Tough." They began to get the static for the first time. It crackled and snapped in their speakers. They made sounds of disapproval at each other. For a minute or two, static blanked out the communications completely. It then abated to something in excess of normal. "Well," Lt. Chandler commented, "even though we didn't build this thing to withstand a moonquake, it seems to have stood up all right." "I guess I was just—" Major Winship began. "Oh, hell! We're losing and plastered it against a riveted seam of the dome. It pulsed as though it were breathing and then it ruptured. Major Winship moved quickly to cut out the emergency air supply which had cut in automatically with the pressure drop. "You guys wait. It's Major Winship pressed the sheeting over the leak. "How's that?" "I don't think I've got enough pressure left to hold it, now. It's sprung a little, and I can't get it to conform over the rivet heads." There was a splatter of static. "Damn!" Major Winship said, "they should have made these things more flexible." he said wryly, "it doesn't smell as bad now." "Oops," said Major Winship. "Just a second. They're coming in." He switched over to the emergency channel. It was General Finogenov. "Major Winship! Hello! Hello, hello, hello. You A Okay?" "This is Major Winship." "No, no. Oh, no, no, no, no. Major Winship, please believe me. I very repeatedly assuring you there was no danger of a quake—and then to have something like this happen. Oh, this is very embarrassing to me. Is there anything at all we can do?" communication. "What'd they say?" Capt. Wilkins asked. "Larry, General Finogenov said he was very embarrassed by this." "Les has got it." Lt. Chandler got down from the bunk and Capt. Wilkins mounted. "Larry," Major Winship said, "why don't you get Earth?" "Okay." Capt. Wilkins got down from the bunk and Capt. Lawler ascended. energized the circuits. There was a puzzled look on his face. He leaned his helmet against the speaker and then shook his head sadly. "We can't Major Winship looked at the microphone. "Well, I'll just report and—" "That's right, isn't it." Capt. Wilkins flicked off the transmitter. "Some days you don't mine at service." Major Winship said dryly, "Never mind. I notice it hardens on contact with air." Major Winship, with his deficient reefer, remained behind. Capt. something else goes wrong." plate to the small transmitter-receiver set on Major Winship's back. Eventually, trailing wires, Major Winship was coupled into the network. "Okay?" "Okay," Major Winship gestured. They roused Earth. "This is Major Charles Winship, Commanding Officer, Freedom 19, the American moonbase." "This is the Cape. Come in, Major Winship." "Just a moment." "Is everything all right?" Major Winship was squirming nervously, obviously perturbed. "A-Okay," he said. "Just a moment." "What's wrong?" came the worried question. In the background, he heard Major Winship made a strangling motion and reached for his throat. One arm tangled a cable and jerked the speaker jack loose. Major Winship was not entirely subvocal, since he emitted a little gasping cry in involuntary realism. This, in the course of some 90 seconds, was transmitted to Earth. Capt. Wilkins's lips were desperately forming the word "Leak?" Air, Major Winship said silently. "We're all right. A-Okay." Major Winship, mindful of the extent of his potential audience, took a deep breath. "Earlier this morning, the Soviet Union fired an underground atomic device for the being inserted. Another tap indicated it was seated. Major Winship "However," he continued, "we did experience a minor leak in the dome, which is presently being repaired." "The Soviet Union," came the reply, "has reported the disturbance and has tendered their official apology. You want it?" destroyed our organic air reconditioner. We have approximately three weeks of emergency air. However, Base Gagarin reports no damage, so the conversation a tone of deliberation. A new voice came on. "We tried to contact you earlier, Major. We will be able to deliver replacements in about ten days." "Let us hear from you again in ... about three hours. Is the leak repaired?" "The leak has not yet been repaired. Over and out." He nodded to Capt. Wilkins and leaned back. Methodically, Capt. Wilkins set about disconnecting the major from the Winship, squinting out into the glaring sunlight. interposing itself. Lt. Chandler tried to dismantle the table. "Damn these suits," he said. the main air-supply tank and the transmitter. They were all perspiring. "It's not the weight, it's the mass," said Capt. Wilkins brightly. "The hell it isn't the weight," said Lt. Chandler. "That's heavy." "No!" Major Winship snapped. "Out! Out!" Major Winship, Lt. Chandler, and Capt. Lawler, recognizing the sense of urgency, simultaneously glanced at the drum. It was glowing cherry red.

<question>:
What goes wrong just as Winship makes contact with earth?

<options>:
A His communications were cut off, and he has no way to talk to Wilkin.
B He is starting to lose air and needs to have it replaced.
C He runs out of air and can't breathe.
D The communications equipment stops working, and the people down at Earth start to worry.

<answer>:

B