An analyst will recommend a combination of 2 industrial stocks, 2 transportation stocks, and 2 utility stocks. If the analyst can choose from 6 industrial stocks, 5 transportation stocks, and 4 utility stocks, how many different combinations of 6 stocks are possible?\nOptions:\n(A) 1200\n(B) 900\n(C) 600\n(D) 180\n(E) 720 OK. Let's think. Some random thoughts first:
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6C2 * 5C2 * 4C2 = 15*10*6 = 900. The answer: (C).
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