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

<passage>:
fingers only, a very creditable speed. And Hilary brought in a bottle of his new detergent. It was a syrupy yellow liquid with a nice collar of suds. He'd been busy in his home group this summer?" tasty, I might add. "Why, Donald," she said, "it could what a junior achievement group is. What gave you the idea?" grades wanted to start one. They need adult guidance of course, and one of the group suggested my name." "Is it good?" For answer he seized the ice bucket, now empty of its soda bottles, brand of science to these children of a new age. "It has the purpose," I told her, "of teaching the members something about commerce and industry. They manufacture simple compositions like polishing waxes and sell them from door-to-door. Some groups have built up tidy little bank accounts "Oh, all right," I said, "laugh at quiet. "You didn't know that one of your junior whatsisnames poured detergent in the Memorial Fountain basin last night?" "Well, now," I said, "organic synthesis my commercial aspirations. But don't to put up fifty dollars to buy any sounds like another operation calling for capital investment. If we all those simply captivating mice." "Mice?" "Yes, of course. Who would ever have thought you could breed mice with those cute furry tails?" and if it's safe and legal and possible to do with the starting capital we many for breeding, but mostly for shipping. "Well, Mr. Henderson, a junior achievement group is a bunch of kids who get together to manufacture and sell things, and maybe make some money." "Is that what you want to do," I asked, "make money?" "Why not?" Tommy asked. "There's something wrong with making money?" "Well, sure, I suppose we want to," Many of them wanted to buy mice or to do the things we want to do later." "And what sort of things would you like to make and sell?" I asked. The usual products, of course, with these junior achievement efforts, are chemical specialties that can be made safely and that people will buy and use without misgivings—solvent to free up rusty bolts, cleaner to remove road tar, mechanic's hand soap—that sort of thing. Mr. McCormack had much of the time they seem to have little interest in their studies. The junior achievement idea has sparked their imaginations. Maybe it'll be just what they need." Mary said, "Why don't we make a freckle remover? I'd be our first customer." "The thing to do," Tommy offered, "is to figure out what people in that might be the case, and there are to them." "I'd like to make something by powder metallurgy techniques," said three patent men in our office who'd time. Partly for the kicks and partly because we think you may have some them by electroplating." "And all we'd need is a hydraulic press," I told him, "which, on a guess, things worth protecting. How about might cost ten thousand dollars. Let's ball bearings by molding, then densify reluctantly. "Then maybe something in the electronics field. A hi-fi sub-assembly of some kind." "How about a new detergent?" Hilary put in. "Like the liquid dishwashing detergents?" I asked. He was scornful. "No, they're formulations—you know, mixtures. That's cookbook chemistry. I mean a brand new synthetic detergent. I've got an idea for one that ought to be good even in the hard water we've offered to license the design. Result, one licensee with a thousand dollar advance against next season's royalties. legal sense, of course. Hilary and I were just going over the situation on his phosphonate detergent. I've spent the last three nights studying the patent literature and a few standard texts touching on phosphonates. There are a zillion patents on synthetic detergents and a good round fifty on phosphonates, but it looks"—he held up a long admonitory hand—"it shop in Denver, but they're red—sort "No." She shook her head in mock despondency. "I'm not very technical. Just sort of miscellaneous. But if the "Do you have a special field of interest?" of chipmunk color, you know. I've incredulously. "Mice," I echoed, then sat back and thought about it. "Are they a pure strain? One of the recognized laboratory carried them through seventeen generations right strain," I explained to Tommy, "might be sold to laboratories. I have an idea the Commission buys a supply every month." the cloth, wiped again, and stared. "What is it?" "A whisker stiffener. It makes each hair brittle enough to break off right got the first four pairs from a pet "So I perceive. What is it?" "Oh, just a mixture of stuff. Cookbook Why don't you consider making an after-shave lotion? Denatured alcohol, glycerine, water, a little color and perfume. You could buy some bottles and have some labels printed. You'd be in business before you chemistry. Cysteine thiolactone for red mice might be rather limited. if we're going to break the hearts of the razor industry, there's no better use cosmetics and junk, but if they didn't have to admit it, they might like the shave lotion." He said suddenly, "Gosh, I think I know how to make a—what do you want to call it—a before-shave lotion." "What would that be?" I asked. "You'd use it before you shaved." buy a hydraulic press. You see, Doris put some embroidery on that scheme of mine for making ball bearings." "I suppose there might be people who'd prefer to use it beforehand," only it's a permanent magnet. Then you see—." And he was off. "What did they do today, dear?" a big day. We picked out a hydraulic starting action to get the company incorporated." "You mean you're going to try to keep the group going after school starts?" "Why not? The kids can sail through their courses without thinking about them, and actually they won't put in more than a few hours a week during the school year." "Even so, it's child labor, isn't it?" "Child labor nothing. They're the employers. Jeff McCord and I will young boy who doesn't know any better, may wind up a sales manager. and I'd be crazy to turn it down. After all, what's to lose?" "and think about the small end. It'll work out all right." I wished that the youngsters weren't starting out by inventing a new article to manufacture, and risking an almost certain disappointment, but to impractical, of course, for a group of children to attempt, but several of them appeared quite attractive. Tommy, for example, wanted to put tooth powder into tablets that one would chew before brushing the teeth. He thought there should be two colors in the same bottle—orange the blue ones designed to leave the mouth alkaline at bed time. drive it in with a hammer up to the threaded part, then send it home with a few turns of a screwdriver. Hilary, reluctantly forsaking his ideas on detergents, suggested we make black plastic discs, like poker chips but thinner and as cheap as to reduce evaporation. These latter ideas had made unknowing smart boys and girls. Tommy Miller does sound like a born salesman. Somehow I don't think you're going Cope told me, "to borrow some money. some cash to get started." "Oh, sure, but don't you think it would be better to borrow from a bank? More businesslike?" hadn't picked a name yesterday, but I figured what's to lose, and picked one. like to chip in and contribute some who by mutual consent, was our authority on sales, didn't want to sell

<question>:
Why does the group want to buy a hydraulic press?

<options>:
A They want to make cages for the mice.
B They want to make ball bearings.
C They want to make kites.
D They want to make detergent.

<answer>:

B