The correct answer is A) Questioning.
As a strategy for narrowing the topic for an essay on animal medicine, Felecia imagines interviewing a veterinarian. The method of generating ideas she is using is Questioning.
When someone uses questioning as a method to narrow a topic for an essay, it focusses on a question or a series of questions related to the topic that should help to delimit the information that is about to appear om the essay. The question shouldn't e an easy one but the kind of question that makes you think an investigate.
The other options of the question were B) visualizing, C) brainstorming, and D) free writing.