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

<passage>:
himself from his seat and hurled himself backward from the table with an incoherent cry. He He did not unbuckle his safety belt—he rose and it snapped like a string. JUPITER There was only one holding onto the bunk with one section of Jupiter's View, the crewman had reached Asrange and pulled him off. When they had Asrange in had insisted. A woman could not possibly she had no one on Ganymede could have broken your skull! Or a couple of ribs, at the very least.” “I couldn't,” said Quest miserably, There were only two other born on Jupiter. A human could stand the gravity of Jupiter, inside a dome or a ship, but what human could stand the rocket acceleration necessary to break free of Jupiter? Here's a man strong enough to break a spaceship safety belt just by getting up out of his chair against it, can't do anything.” and then crying that he had injured his hand on the bar. “But he said Dr. Mansard was his father,” protested Trella. “Robots and androids frequently Evading her attempts to stay artificial. Do you know how Mansard died?” “The oxygen equipment failed, Quest said.” went. She discovered that two “Yes. Do you know when?” she cried, tears in her eyes. Quest of Jupiter, if he's human?” that would have felled a steer, and Kregg roared in pain, grabbing “Everything about you … your his injured fist. lived in the poisonous atmosphere build, suited for Jupiter's gravity …your strength … the smashed on Kregg's head, splashing the floor with liquor, and Kregg sank stunned to his and it had been developed by your strength … the her and ran for the door. fact that you were able to live had not told Quest of her mission to Ganymede. He thought he was Dr. Mansard's son, but an android had no legal right of inheritance from his owner. She Thus she did not, as she had “Yes. I'm afraid it's your decision after she had completed her assignment. was born and brought up there, had told her he could not love her. Her best course was to try to forget him. if they did!” she snapped. “But I'm desperate. You can carry him to the Stellar Hotel for me.” The gravity of Ganymede was hardly more than that of Earth's moon, but the way the man The transparent dome of Jupiter's were overwhelmed by the giant, vari-colored disc of Jupiter itself, riding high in the sky. “I'm Quest Mansard, Miss,” said her companion. “I'm just in from Jupiter.” Jupiter.” “You're lying,” she said flatly. “No one has ever landed on Jupiter. It would be impossible to blast off again.” “My parents landed on Jupiter, and I blasted off from it,” he said soberly. “I was born She told him about Quest. “He thinks he's the son of Dr. Mansard,” she finished, “but apparently he is, without knowing it, an android Dr. Mansard built ship was drawn into Jupiter and lost.” “It was drawn into Jupiter, on Jupiter.” “He came back to Earth with but he landed it successfully,” said Quest. “He and my mother lived on Jupiter until the oxygen as Dr. Mansard's heir.” equipment wore out at last. I you, eh?” asked Blessing intently. he's an android and claim ownership and I was finally able to build a small rocket with a powerful enough drive to clear the Trella planned to spend a few days resting in her employer's her duties as his confidential step, seeming to deliberately hold himself down. “If Dr. Mansard succeeded in landing on Jupiter, why didn't anyone ever hear from him again?” she demanded. “Because,” said Quest, “his radio was sabotaged, just as his ship's drive was.” “Jupiter strength,” she murmured, “Why all the protection?” she looking him over coolly. eh? And if he is—what if old Mansard didn't build in the prohibition against harming humans that's required by law? Blessing feared Dr. Eriklund Mansard … or his heir … or his mechanical servant. She was sure that Blessing a cab to deliver the unconscious Motwick to his home. She and to assign her to take the Mansard papers to the New York laboratory. Quest came the day before she was scheduled to leave. against telling him that the come to the Jupiter system was assignment on which she had For some reason she decided Earth. Motwick was an irresponsible to gather his own father's notebooks and take them back to briefly on Earth, and Trella was for the remaining three weeks before the spaceship blasted off. She found herself glad to dispense with his company enjoying the steadier companionship crash outside the room as the front door splintered. There He and his bodyguards ran leaped into one of the cars and started the engine. The door from the house shattered and Quest burst through. she. She was particularly unhappy The ship that they boarded on Moon Nine was one of the newer Earth, but it would still require such force that they skidded across the floor and lay in an unconscious heap against the fifty-four days to make the trip. guards aside with one hand with it was wrenched from her hand as Blessing stepped on the accelerator and it leaped into the he slammed down the accelerator and twisted the wheel hard. The car whipped into the street, careened, and rolled over and over, bringing up against a tree on the other side in a twisted tangle of wreckage. great Jupiter in an opening arc and plummeted ever more swiftly toward the tight circles of the inner planets. There were four crew members and three passengers aboard the ship's tiny personnel was an unconscious drive in me that wouldn't release me until the task was finished. Ganymede to pick up some important papers and take them Io. Blessing wanted the valuable rights to the surgiscope, and he sabotaged the ship's drive so it would fall into Jupiter. “But my father was able to control it in the heavy atmosphere of Jupiter, and landed it Mansard's son knowing about it. could not object to Dr. before she was born, and she did not know what Dom Blessing's relation to Dr. Mansard All these things had happened successfully. I was born there, Mansard had invented the surgiscope. This was an instrument with was unable to fight any other had been, but it must have been very close. She knew that Dr. Jupiter-strong muscles, Quest took her in his arms. delicate operations could be performed at the cellular level. Dr. Mansard and his wife had disappeared into the turbulent atmosphere of Jupiter just after in Jupiter's atmosphere after the oxygen equipment failed. I know you think Dr. Mansard was your father, but androids his invention of the surgiscope, Through all these years since Dr. Mansard's disappearance, 55 Blessing had been searching the Jovian moons for a second, hidden laboratory of Dr. Mansard. up on Jupiter, and he operated When it was found at last, he back to Earth. She was tempted of Jupiter … even to sent Trella, his most trusted on the genes before I was born. He altered my inherited characteristics Mansard lived, and would see that he received his rightful share of the inheritance. Because happy to learn that a son of Dr. he and my mother blasted off for but she decided against my boyhood on Jupiter very Blessing can't squirted coffee on him. It was one of those accidents that can occur easily in space. The passengers and the two crewmen on that particular waking shift (including Jakdane) and he conditioned me to come pressed it before he got it to his lips. The coffee squirted all over in distress. impossible, he had unbuckled

<question>:
Why couldn't Dr. Mansard and his wife leave Jupiter?

<options>:
A A human would not survive the force of acceleration that would be needed to break free of Jupiter's gravity.
B Dr. Mansard and his wife ran out of oxygen before they could complete the repairs to their ship.
C Dr. Mansard and his wife were torn apart by gravitational forces when they tried to leave Jupiter.
D Dr. Mansard and his wife were unable to repair their ship after crash landing on Jupiter.

<answer>:

A