question:  Why will the group be out of the mouse business by the fall?
context: They manufacture simple compositions like polishing waxes and sell them from door-to-door. Some groups have built up tidy little bank accounts which are available for later educational expenses." Marjorie put back her head and laughed, and I was forced to join her, for we both recognize that my understanding and "feel" for commercial matters—if I may use that expression—is almost nonexistent. Mr. McCormack is going to put up fifty dollars to buy any raw materials wanted Back in the old Ridgeville, fifty-odd miles to the south, we had our home almost paid for, when the accident occurred. When Ridgeville moved to its present site, so, of course, did we, which meant starting mortgage payments all over again. This was to be our headquarters and factory for the summer—a roomy unused barn belonging to the parents of one of the group members, Tommy Miller. My job here is only to advise, and I'm going to do that as little as possible. You're going to decide what to do, and if it's safe and legal and possible to do with the starting capital we have, I'll go along with it and help in any way I can. Mary McCready was a big husky redhead of twelve, with a face full of freckles and an infectious laugh, and Tommy Miller, a few months younger, was just an average, extroverted, well adjusted youngster, noisy and restless, tee-shirted and butch-barbered. The group exchanged looks to see who would lead off, and Peter Cope seemed to be elected. "Some," said Hilary, "and I've got a home laboratory." "Mice," I echoed, then sat back and thought about it. Healthy mice of the right strain," I explained to Tommy, "might be sold to laboratories. "Well, now," I admitted, "the market for red mice might be rather limited. There was a pause, then Tommy inquired, "How do you sell it?"
output:  The mice are breeding so fast, they will not be a novelty much longer.
options:  They are selling the mice to the Commission.  When the cold weather comes in the fall, the mice won't survive in the cold barn.  Tommy refused to sell the mice.  The mice are breeding so fast, they will not be a novelty much longer.