The clauses in this sentence are marked (a) and (b), decide which one is the premise(s) and which one is the conclusion in its making an argument. (a) A good society treasures its dissidents and mavericks because (b) it needs the creative thinking that products new hypotheses, expanded means, a larger set of alternatives, and in general, the vigorous conversation induced by fresh ideas. The premise(s) is ________; the conclusion is _______.