The question that is the most clearly analytical in nature is option C:
"Why did the author decide to start in the middle o the action?"
The question word "why" has the purpose to rationally understand the reason that led the author to start in the middle of the act. Reasonably, he should start by the beginning, but if he decided to start in the middle, so it would be for a rational and good reason, and this is the purpose of the question.
This is obviously known as short-term memory. We know it is not long-term, as it would not have been forgotten as quickly. Implicit memory has to do with the unconscious recollection of information, so we know that one is not correct, and explicit memory is the conscious recollection of information. While they are both types of long-term memory, the best answer to this problem is a. long-term.