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

<passage>:
the U.S. copyright on this publication was renewed.] Old Kerry Blane exploded. "Damn it!" he roared. "I don't like you and I don't like the assignment "Splinter" Wood grinned. "Seems to me, Kerry," he remarked humorously, "that you don't like much of anything!" Kerry Blane growled unintelligibly, batted the injector lever with a calloused hand. His grizzled hair was a stiff wiry mop on his small head, and his oversize jaw was thrust belligerently forward. But deep within his eyes, where he hoped it was hidden, was a friendly twinkle that gave the lie to his speech. "You're a squirt!" he snapped disagreeably. "You're not dry behind the ears, yet. You're like the rest of these kids who call themselves pilots—only more so! And why the hell the chief had to sic you on me, bends at any moment." to fly a ship, how to cure space bends, how to handle a Zelta ray, or how to spit—I'll ask you! Until then, you and your bloody marbles can go plumb straight to the devil!" "Tsk! Tsk! Tsk!" Splinter reached out lazily, plucked the capsules from the air, one by one. Kerry Blane lit one of the five allotted cigarettes of the day. "Don't 'tsk' me, you young squirt," he grunted around a mouthful of fragrant smoke. "I know all the arguments you can put up ain't that all I been hearing for a week? You take your vitamins A, B, C, D, all you want, but you leave me alone—or I'll stuff your head down your throat, P.D.Q.!" gonna be begging for some of my vitamin, super-concentrated pills before we get back to Earth." Kerry Blane made a rich, ripe noise with his mouth. "Pfuii!" he said very distinctly. "Gracious!" Splinter said in mock horror. space warriors. disagreeably. A grin lifted the corners of Splinter's long mouth, spread into his You've got orders to take care of me ?" Kerry Blane choked incoherently for a moment, red tiding cholerically upward from his loosened collar. "Of course!" Splinter grinned. Kerry Blane exploded, words spewing volcanically forth. Splinter relaxed, his booted foot beating out a dull rhythm to the colorful language learned through almost fifty years of spacing. And at last, "Seventy-eight!" he remarked pleasantly. "Seventy-eight what?" Kerry Blane asked sullenly, the old twinkle beginning to light again deep in his eyes. "Seventy-eight new words—and you swore them beautifully!" Splinter the warmth of their friendship was a tangible thing in the small control-room of the cruiser. And in the midst of their laughter, Old Kerry Blane choked in agony, surged desperately against his bunk straps. He screamed unknowingly, feeling only the horrible excruciating agony of his body, tasting the blood that gushed from his mouth and nostrils. His muscles were knotted cords that he could not loosen, and his blood was a surging stream that pounded at his throbbing temples. The air he mouth was open in a soundless scream. He sensed dimly that his partner had wrenched open a wall door, removed metal medicine kits, and was fumbling through their contents. He felt the bite of the hypodermic, felt a deadly numbness replace the raging torment that had been his coma-like sleep, woke hours later to stare clear-eyed into Splinter's concerned face. "Close, wasn't it?" he said weakly, conversationally. bends." Kerry Blane grinned, winced when he felt the dull ache in his body. "I've had the bends before, and lived through them!" he said, still "All right—and thanks!" "Forget it!" Splinter flushed in quick embarrassment. They could feel the first tug of gravity on their bodies, and through and twisted uneasily over the surface of the planet. "Murdered!" Kerry Blane smiled grimly. "I guess I used too broad an interpretation replaced by heavier fingers of cloud. Kerry Blane pressed a firing stud, and nose rockets thrummed in a rising crescendo as the free fall of the cruiser was checked. Heat rose in the cabin from the friction of his eyes flicking from one instrument to another. Tiny lines of concentration etched themselves about his mouth, and perspiration beaded his forehead. He rode that cruiser through the miles of clouds through sheer instinctive ability, seeming to fly it as though he were to be composed of liquid fluorescence. Kerry Blane heard Splinter's instant sigh of unbelief. "Good Lord!" Splinter said, "What—" felt tired and worn, his body aching from the space bends of a few what seemed to be liquid fire. It was like watching a tri-dim screen of a news event, except for the utter lack of sound. One was scaly, while the other was skinned, and both were fully three hundred feet long. Great scimitars of teeth flashed in the light, and blood gouted and stained the water crimson whenever a slashing blow was struck. They threshed in a mad paroxysm of rage, whirling and spinning spray of fluorescence. And then the scaly monster flashed in a half-turn, drove forward with jaws agape, wrenched and ripped at the smooth black throat of the other creature. The second creature rippled and undulated in agony, whipping He idly swallowed another vitamin capsule, grinned, when he saw Kerry Blane's automatic grimace of distaste. Then he yawned hugely, twisted the snoring Splinter. "This is it, Sleeping Beauty," he called. "Snap out of it!" "Oh!" Splinter swung his feet from the bunk, peered from the vision port, sleepiness instantly erased from his face. lodged in the slot. There was the sharp splutter of a short-circuit, and a thin tendril of smoke drifted upward. "Damn!" Kerry Blane swore briefly. force against the control panel. They groped feebly for support, their into his face. He opened his eyes, stared blankly, uncomprehendingly into the bloody features of the man bending over him. "What happened?" he gasped. Splinter Wood laughed, almost hysterically, mopped at his forehead with a wet handkerchief. "I thought you were dead!" he said simply. Kerry Blane moved his arm experimentally, felt broken bones grate in an exquisite wave of pain. He fought back the nausea, gazed about the be rewired, but nothing else seems to be damaged so that repairs are needed." Splinter looked up from his task of bandaging his leg. "What caused the crash?" he asked. "One minute, everything was all right the next, Blooey!" Anger suddenly mottled Kerry Blane's face he swore monotonously and bitterly for a moment. "Those gol-damned pills you been taking caused the crash!" he roared. "One of them broke and shorted out the control board." He scowled at the incredulous Splinter. "By the three tails of a Martian sand-pup, I ought to cram the rest of them down your throat, boxes and all!" Splinter flushed, seemed to be fumbling for words. After a bit, Kerry Splinter nodded, opened the medical locker, worked with tape and splints for minutes. Great beads of perspiration stood out in high relief on Kerry Blane's forehead, but he made no sound. At last, strong in the lesser gravity.

<question>:
Which is not a symptom of the space bends?

<options>:
A A horrible headache
B Muscle cramps
C Numbness in the arms and legs
D A bloody nose

<answer>:

C