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

<passage>:
SILENCE IS—DEADLY Curtis recalled that Nelson and Androka had long conversations together—conversations which they would end abruptly when anyone else came within earshot. And Nelson had always been chummy with the worst always acted as if he had some secret, something to hide. naval organization. If you could silence all radio—silence of that sort would be deadly! organization—and particularly in modern rat-a-tat of knuckles hammered on the cabin door. Curtis got a glimpse of the design on which he was working, and his lips relaxed in a faint smile. Androka had arrived on board the Comerford the day before she sailed from Norfolk. With him came a boatload of scientific apparatus and equipment, including a number of things that looked like oxygen tanks, which were now stored in the forward hold. Androka had watched over his treasures with the jealous care of a mother hen, and spent hours demolished, in a small, timbered hollow—a well-hidden spot invisible from the air, unless one were flying very low Sometimes, Curtis thought old Androka was a bit wacky—a scientist whose mind had been turned by the horror that had come to his country under the domination of the Nazi gestapo behind. Curtis was studying the wreckage of the wireless station, wondering if this might have been the source of Androka's zone of silence, when Ensign Jack Dillon came up to him. . At other times, the man seemed a genius. Perhaps that was the answer—a mad genius! oilskins, blinking his eyes against the yellow light. Curtis closed the door and nodded toward the bent form of Zukor Androka, with a quizzical grin. "Old Czech-and-Double-Czech is working hard on his latest invention to pull Hitler's teeth and re-establish the Czech Republic!" old eyes twinkling behind their thick lenses. "Go ahead and try it. See how much you can get! It will be no more than Hitler can get when Zukor Androka decrees silence over the German airways! Try it! Try it, I say!" Bob Curtis stared at him, as if questioning his sanity. Then he hastened to the radio room, with Nelson at his heels, and the Czech still wearing his earphones, and stood staring upward incredulously at the aërial. "Get us a radio cross-bearing for location at once," Curtis said The Czech inventor giggled. Curtis gave him another curious look and thrust himself into the radio room. "Try again!" he told the operator. "See what you can get!" can enter or leave my zone of radio silence—of refracted radio waves, set up by my little station on one of the neighboring islets!" There was a long pause, while commander and navigator stared at him. Curtis was the first to speak. "Your secrecy might well cost the United States navy one of its best light cruisers—and us our lives!" he said angrily. "We need that check by radio at once! If you're not talking nonsense, call off your dogs till we learn just where we are!" Androka held out his palms helplessly. "I can do nothing. I have given orders to my assistant that he must keep two hours of radio silence! I can get no message to him, for our radio is dead!" winking at the two officers over Androka's discomfiture, and asked for the bearings. Commander and navigator had both scribbled verifications of the numbers. Ignoring the gibbering Androka, who was wailing his disappointment that messages had penetrated his veil of silence, they wires were alive to the touch and set him to shaking his head at the tingle they sent through his inquiring fingers. Curtis left him at it, and went to rejoin Androka in the cabin. He are other inventions to supplement this one. Put them together, and they will defeat the Nazi hordes which have ravaged my country!" Curtis was a little shocked by the hatred that gleamed in Androka's eyes, under their bushy brows. There was something of the wild animal "Those tanks you have below," Curtis said, "have they some connection with this radio silence?" A far-away look came into Androka's eyes. He did not seem to hear understand—better dead?" Curtis said: "I understand." "And if the Nazi agents in America knew of the islet from which my zone of silence is projected—" Androka paused, his head tilted to one side, as if he were listening to something— On deck, there was shouting and commotion. Curtis rushed out, pulling And then he became aware of a deadly stillness. A vast wall of silence the Maginot Line, and of other forts in Holland and Belgium that had fallen before the early Nazi blitzkrieg, when their defenders found themselves struck numb and helpless by a gas that had been flooded into the inner compartments of their strongholds. shroud of mist and steadied it, so that the cruiser would not be completely at the mercy of the wind and the waves. into the sandbar at the entrance of the inlet. got a neutralizing chemical in one of them tanks of his that'll clear everything up inside half an hour." "I'd rather get along without Androka, if we could!" Nelson muttered. "He's nothing but a crackpot!" "It was a crackpot who invented the gas we used to break up the World War, he wouldn't have lost his business my mother would still be living. When he joined the Nazi party, the way became clear to use Androka had brought aboard the Comerford That zone of silence cut us off completely." Kommander Brandt nodded. "Goodt! But you got your message giving your "Yes," Nelson said. "That came through all right. And won't Curtis have a time explaining it!" "Hereafter," Brandt said solemnly, "the zone of silence vill be projected from the and ve have another invention of Androka's vich vill be even more useful vhen ve come to cut the Carethusia out of her convoy." "What's the idea?" capturing a United States navy cruiser." "There are other things Germany needs desperately on board the Carethusia barrels of lard oil for machine-tool lubrication. Our agents have been watching the convoys closely for weeks for just such a cargo as the Carethusia is taking over." "Can we trust Androka?" Nelson asked, with a sudden note of suspicion in his voice. "Yes," Brandt assured him. "Of all men—we can trust Androka!" "But he's a Czech," Nelson argued. "The gestapo takes care of Czechs and Poles and Frenchmen and other foreigners whom it chooses as its agents," Brandt pointed out. "Androka has a daughter and other relations in Prague. He knows that if anything misfires, if there is the slightest suspicion of treachery on his part, his daughter and the others will suffer. Androka's loyalty is assured!" Nelson turned to watch the forward fighting top of the Comerford . The masked German seamen were installing some sort of apparatus up there—a strange-looking object that looked something like an old-fashioned trench mortar, and which connected with cables to the room that served as Androka's laboratory and workshop. Another crew was installing radio apparatus in the mizzentop turret. to rid the below-decks atmosphere of the lethal gas that had overcome the Comerford's very purpose. The pieces of the picture fitted together like a jigsaw puzzle—Androka's zone of silence the bearings given by radio Navigating Officer Nelson's queer conduct. They were all part of a never trusted him. Nelson

<question>:
To what is the title of the story, “Silence is—Deadly” referring?

<options>:
A Androka’s zone of silence is used as a deadly tool against the Nazi war effort.
B Androka’s zone of silence is used as a deadly tool against the Comerford’s crew.
C Androka’s zone of silence is used as a deadly tool, made in the name of revenging the Czech war effort.
D Androka’s zone of silence is used as a deadly tool, helping the Americans sneak up on a Nazi Islet.

<answer>:

B