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

<passage>:
nor the significance of Seymour Pond's retirement. Si didn't bother to remember his name. He only wondered vaguely why the cloddy had turned up at all. in the way of reward, such as a few shares of Variable Basic to add to his portfolio. But that, he supposed, was asking too much. The fact of the matter was, Si knew that his retiring had set them back. They hadn't figured he had enough shares of Basic to see him through decently. Well, possibly he didn't, given their standards. But Space Pilot Seymour Pond didn't have their standards. He'd had plenty of time to think it over. It was better to retire on a limited crediting, on a confoundedly limited crediting, than to take the two or three more trips in hopes of attaining a higher standard. They could count down and blast off, for all he gave a damn. The gold watch idea had been that of Lofting Gubelin, which was typical, he being in the way of a living anachronism himself. In fact, the cloddy's patriotism, sentiment and desire for public acclaim have miserably failed." In his position, I am afraid I would do the same thing he has." "That's nonsense, Hans. Zoroaster! Either you or I would gladly take Pond's place were we capable of performing the duties for which he has "At that time there wasn't such a blistering percentage of funkers throughout this whole blistering Ultrawelfare State! Who could foresee that eventually our whole program would face ending due to lack of courageous young men willing to take chances, willing to face adventure, willing to react to the stimulus of danger in the manner our present generation in finding it far more pleasant to follow one's way of life in the comfort of one's home than to be confronted with the unpleasantness of facing nature's dangers in more adventurous pastimes." society that allows him an income sufficient to secure the food, clothing, shelter, medical care and education to sustain a low level of subsistence. Percentages were against his ever being drafted into industry. Automation being what it is, only a fraction of the you yourself who talked him into taking the training ... pointing out the more pragmatic advantages such as complete retirement after but six trips, added shares of Basic so that he could enjoy a more comfortable life than most and the fame that would accrue to him as one of the very few who still participate in travel to the planets. Very well. He was sold. Took his training, which, of course, required long years of drudgery to him. Then, performing his duties quite competently, he made his six trips. He is now legally eligible for retirement. He was drafted into the working force reserves, served his time, and is now free from toil for the balance of his life. Why should he listen to our pleas for a few more trips?" "But has he no spirit of adventure? Has he no feeling for...." always paid lip service to adventure, hardships and excitement, but in actuality his instincts, like those of any other animal, lead him to the least dangerous path. Today we've reached the point where no one take months, possibly more than a year, to bring another novitiate pilot to the point where he can safely be trusted to take our next spark the race that a new dream to push man out to the stars will take hold of us. If it is admitted that our organization has degenerated heading home. The one short drink would lead to another. And morning would find him, drunk, rolled, tattooed and possibly sleeping it off in can't be separated from his money quite so easily. If he could, I'd personally be willing to lure him down some dark alley, knock him over the head and roll him myself. Just to bring him back to his job again." name pulled. But when it had been, Si had celebrated. dangers met and passed. Now it was all over. At the age of thirty he was retired. Law prevented him from ever being called up for contributing to the country's labor needs again. And he most certainly wasn't going to volunteer. He had taken his schooling much as had his contemporaries. There wasn't any particular reason for trying to excell. You didn't want to get the reputation for being a wise guy, or a cloddy either. Just one of the fellas. You could do the same in life whether you really studied or It had come as a surprise when he'd been drafted for the labor force. In the early days of the Ultrawelfare State, they had made a mistake in adapting to the automation of the second industrial revolution. They had attempted to give everyone work by reducing the number of working hours in the day, and the number of working days in the week. It finally became ludicrous when employees of industry were working but two days a week, two hours a day. In fact, it got chaotic. It became obvious that it was more practical to have one worker putting in thirty-five hours a week and getting to know his job well, than it was to have a score of employees, each working a few hours a week and none of them ever really becoming efficient. The only fair thing was to let the technologically unemployed remain unemployed, with their Inalienable Basic stock as the equivalent of unemployment insurance, while the few workers still needed put in a reasonable number of hours a day, a reasonable number of weeks a year and a reasonable number of years in a life time. When new employees were needed, a draft lottery was held. accumulated a lot of dollars these past few months and he intended to blow them, or at least a sizeable number of them. His credit card was burning a hole in his pocket, as the expression went. However, he wasn't going to rush into things. This had to be done correctly. quite so little for his money as that loneliest of all workers, he who must leave his home for distant lands, returning only periodically and usually with the salary of lengthy, weary periods of time to be spent hurriedly in an attempt to achieve the pleasure and happiness so long denied him. Si was going to do it differently this time. A bit of prestige didn't hurt you when you went out on the town. In the Ultrawelfare State hardly one person in a hundred actually ever performed anything of value to society. The efforts of most weren't needed. Those few who did contribute were awarded honors, decorations, titles. spend as much as half of it, if the spree got as lively as he hoped it would. His monthly dividends were due in another week or so, and he Si took his time. Not that he really needed it. It was by far the most He didn't take the time to flick on the menu, next to the auto-dining table, nor to check the endless potables on the autobar list. All that, he well knew, would be superlative. Besides, he didn't plan to dine around in second-class groggeries, no eating in automated luncheterias. This time, be it the only time in his life, he was going to frolic in However, he stifled his first instinct to wonder about what this was going to do to his current credit balance with an inner grin and made Si cleared his throat. "Hey," he said, "how about letting this one be Si was expansive. "Why, sure. In the Space Department we don't have that you were the last of the space pilots. The last man in the whole world trained to pilot a space craft. And here you were, retiring." Si grunted. "Yeah. That's all part of the Doc's scheme to get me to take on another three runs. They're afraid the whole department'll be in space any more. In fact, most people are almost contemptuous, like. Think it's kind of a big boondoggle deal to help use up a lot of materials and all and keep the economy going."

<question>:
Why is Si retirement so significant to the Space Exploration Team?

<options>:
A There aren’t enough working people in the world. They won’t be able to find a replacement.
B As one of two remaining spacemen, it would likely mean the defunding and shut down of the Space Exploration Team.
C Training new spacemen is costly and time consuming. They won’t have anyone else ready after him.
D His retirement may inspire others to stop working as well, which would be hugely detrimental as most people don't feel the drive to work as is.

<answer>:

C