The correct answer choice is (C). The argument tells us that one of the main factors considered in the selection of plays is critical acclaim and concludes that since the neighbor's play is selected, she must be critically acclaimed. It is tempting to turn this argument into a conditional, but we only know that critical acclaim is one of the factors, we cannot infer what other factors are considered and whether critical acclaim is necessary for a play to be selected. (C) correctly points out the flaw of reasoning suggesting that critical acclaim is a necessary condition for the play to be selected, whereas it is only one of the main factors, not a requirement. (E) is incorrect because it describes a flaw of cause and effect, rather than a conditional flaw in the stimulus.