input: Text: The Winning of the Moon BY KRIS NEVILLE The enemy was friendly enough. Trouble was—their friendship was as dangerous as their hate! General Finogenov notified Major Winship that the underground blast was scheduled for the following morning. Major Winship, after receiving the message, discussed precautions with the three other Americans. Next morning, before the sunlight exploded, the four of them donned their space suits and went and sat outside the dome, waiting. The sun rose with its bright, silent clap of radiance. Black pools of shadows lay in harsh contrast, their edges drawn with geometric precision. Major Winship attempted unsuccessfully to communicate with Base Gagarin. "Will you please request the general to keep us informed on the progress of the countdown?" "Is Pinov," came the reply. "Help?" " Nyet," said Major Winship, exhausting his Russian. "Count down. Progress. When—boom?" "Is Pinov," came the reply. "Boom! Boom!" said Major Winship in exasperation. "Boom!" said Pinov happily. "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. Ultimately, Lt. Chandler said, "This is a little ridiculous. I'm going to switch over to their channel. Rap if you want me." He sat
  Question: Why do the Americans need to ask the Russians for help?
  
   (A) They don't understand the instructions for the compound. 
   (B) They need help fixing the leak. They don't know how to use the calking compound. 
   (C) They need more manpower to help fix the rest of the dome. 
   (D) They need more calking compound to fix the leak. All of what they had has already hardened. 
  Answer:
output: They need more calking compound to fix the leak. All of what they had has already hardened.