It can't be choices (a) or (b), because if you have 8 committees with a maximum of 5 students each, then you would have 40 students total, which is not enough.

It can't be choices (b) or (d), because if you have 15 committees with a minimum of 3 students each, then you would have 45 students total, which is too many.

So the answer is (c).

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