by LolaC289 Wed Jul 04, 2018 5:00 am
I actually think the argument structure here includes an intermediate conclusion, and the correct answer partly filled the gap b/t the premise and this intermediate conclusion, which in turn strengthens the argument as a whole.
Premise: Actors like it. Stagehands like it. Theater managers like it.
Intermediate Conclusion: Everyone likes repertory theater.
Conclusion: More theaters should change to repertory.
From the premise to the intermediate conclusion, it's evident that the author give a very narrow-scoped support. In fact, when I was doing it I immediately thought: actors, stagehands, managers...wait. What about the audiences? And aren't they a very important group in this decision making(I wanted to say "the most important" here...but hello, let's not get extreme)?
(D) strengthens by telling us this change can meet the audiences' demands as well, which greatly strengthens.