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

<passage>:
They packed their meager belongings while Dick finished his meal the sun was high when they left the beach. They followed the shore line they all started violently as the familiar siren of a Patrol monitor screamed raucously from above them chest caved in like he was carrying a heavy weight on his shoulders. That was from studying things through a microscope. Anyhow, decided bubbling water was nearby, because the woodlands dwindled away into lush fields. And Pop said, surreptitiously, did not notice. Dick was fixing something in the ship. one of which, as soon as Pop got clearance, their ship would take off. Their ship! Bobby felt an eager quickening of his pulse his stomach was aswarm with a host of butterflies. Their ship! Dick was waiting before the open lock of the gurgled. Eleanor cried, "Dick—those dirty hands!" "Clean ether!" said Dick. He closed the lock. Its seal-brace slid into place, wheezing asthmatically. Bobby's ears rang suddenly with the mild when he swallowed, they were all right again. Dick saw him. "What are you doing here, kid? Didn't I hear Pop tell you to come below?" After his high expectations, it wasn't such a great thrill. Dick set their faint, dull throb was a magic sound in the silence. retreated on oiled channels, pneumatic compensators hissing faintly, rustily. Then it was over as quickly as it had begun, and he could breathe again, and Dick was lurching across the turret on feet that wobbled Bobby jumped. It was Mom's voice. But her cry was not one of fear, it Bobby did not need to hear Pop's reply to know that it was. His swift intake of breath was enough, the shine in his eyes as he peered out the Dick said softly, "All right, Pop. Let's check and get ready to set 'er the irrevocable movements of a grounding spaceship. Dick should have he had served two tricks on the Earth-Venus-Mars run. But all those planets were large Dick stared at it, a look of angry chagrin in his eyes. under its compulsion. Dusk swept down upon them, the sunlight dulled, faded, grayed. Then as the ship nosed downward, suddenly all was black. The yellow beam of the search stabbed reluctant shadows, bringing rocky Dick snapped, "Into your hammocks, everyone! Don't worry. This crate sound died away from the cabin, Bobby heard the high scream of ages long. While Dick labored frantically at the controls, while Moira "Hold tight! We're grounding!" cried Dick. And instinctively Bobby braced himself for a shock. But there was only a shuddering jar, a lessening of the roar that beat upon their eardrums, a dull, flat thud. A sodden, heavy grinding and the groan of metal forward. Then a false nausea momentarily assailed him. Because for the first time in days the Cuchulainn a book, said, "What is it, Rob?" Pop stroked his chin. He said, "Well, we've landed safely, Richard. But I'm afraid we've—er—selected a wet landing field. We seem to be under water!" His hazard was verified immediately. Indisputably. For from the crack beneath the door leading from the control turret to the prow-chambers of the ship, came a dark trickle that spread and puddled and stained and gurgled. Water! Dick cried, "Hey, this is bad! We'd better get out of here—" He leaped to his controls. Once more the plaintive hum of the hypatomics droned through the cabin, gears ground and clashed as the rocked and trembled, but did not move. Again Dick tried to jet the fore-rockets. Again, and yet again. And on the fourth essay, there ran through the ship a violent shudder, broken metal grated shrilly from forward, and the water began bubbling and churning through the crack. Deeper and swifter. Dick cut motors and turned, his face an angry mask. remember how to climb into 'em? Eleanor—you take that oversized one. That's right. There's room for you and The Pooch—" The water was almost ankle deep in the control room by the time they had all donned spacesuits. Bloated figures in fabricoid bulgers, they followed Dick to the airlock. It was weird, and a little bit frightening, but to Bobby it was thrilling, too. This was the sort of thing you read stories about. Escape from a flooding ship.... They had time—or took time—to gather together a few precious Pop remembered the medical kit and the tool-box, Grampaw was laden down with blankets and clothing, Dick burdened himself and Bobby with armloads of such things as he saw and forevisioned need for. At the lock, Dick issued final instructions. , they fled. The airlock was small. There was room for but one at a time. The water was waist—no, breast-deep—by the time all were gone save Bobby and Dick. Bobby, whose imagination had already assigned him the command of the foundering ship, wanted to uphold the ancient traditions by being the last to leave. But Dick had other ideas. He shoved Bobby—not too gently—into the lock. Then there was water, black, solid, forbidding, about him. And the outer door opening. He stepped forward. And floated upward, feeling an uneasy, quibbly feeling in his stomach. Almost immediately a hard something clanged! against his impervite helmet then he was bobbing and tossing on shallow black wavelets beside the others. off to his right, not distant, was a rising smudge that must be the mainland. A dark blob popped out of the water. Dick. Dick's voice was metallic through the audios of the space-helmet. "All Pop said, "The ship, Richard?" Grampaw's voice was raucous, belligerent. "You bet y'r boots it ain't! I'm on my way to terry firmy. The last one ashore's a sissy!" Swimming in a bulger, Bobby found, was silly. Like paddling a big, warm, safe rubber rowboat. The stars winked at him, the soft waves explored his face-plate with curious, white fingers of spray. Pretty soon there was sand scraping his boots ... a long, smooth beach with rolling hills beyond. In the sudden scarlet of dawn, it was impossible to believe the night Dick asked, "Isn't that a remarkably slow rotation? For such a tiny deep, instinctive longing to hew a new home from virgin land—" His words dwindled into silence, and, inexplicably, Bobby felt awed. Dick roused himself. III Grampaw Moseley wiped his mouth with the back of his hand. There were no napkins, which suited him fine. done to make their beach camp-site comfortable. All members of the family were waiting now for Dick to return. Pop said seriously, "I'm afraid you'll have to eat them and like them we can't settle until—Ah! Here comes Dick!" "I'll eat 'em," grumbled Grampaw, "but be durned if I'll like 'em. What'd you l'arn, Dicky-boy?" Dick removed his helmet, unzipped himself from his bulger, shook his "It looks worse every time I go back. I may not be able to get in the airlock again if the ship keeps on settling. The whole prow split wide open when we hit, the ship is full of water. The flour and sugar and things like that are ruined. I managed to get a few more things out, though. Some tools, guns, wire—stuff like that." "How about the hypatomic?" "Let him eat, Rob," said Mom. "He's hungry."

<question>:
Why was Dick's voice "metallic" after the crash-landing?

<options>:
A He had injured himself in the landing.
B He spoke via radio transmission.
C His voice was altered due to his spacesuit.
D He had swallowed a lot of saltwater.

<answer>:

C