Hi brci,
Remember that the correct answer to a Resolve question will often be an answer choice that contains a
possible cause of the situation. While Answer Option (D) contains the suggestion that the organ had been modified several times, keep in mind, that does not explain the cause for the choice by the foundation, despite the offer of payment by the donor. Consider it this way, what if the "modifications" mentioned in Answer Option (D) only amounted to a repainting of the organ or some other extremely superficial change? Would that ever cause the foundation to reject the organ?
Now consider Answer (A)'s suggestion that the organ "cannot adequately produce much of the organ music now played in church services and concerts." That is a very solid reason for deciding not to add the organ back into the church. The foundation doesn't need something in the church that it won't use. Answer (A) offers causality for the decision and is definitely the strongest of all the answer choices and thus is correct.
Thanks for the great question!