Which group is most likely planning to participate in a formal discussion?
science fiction fans meeting to discuss their favorite books and movies
bird watching enthusiasts meeting to discuss their favorite national parks
public policy planners meeting to discuss changes to a state-run health program
students meeting to discuss plans for the championship football game

specific audience will understand the main ideas. for example, if you were writing an instruction manual for rocket scientists, it would likely look very different from one you would write for young children. your language, tone, and writing style would change significantly.

are you kidding? from that description of two mansions, you can't figure out which one is bleak and desolate? maybe you should consider looking those words up in a dictionary, if you don't know what they mean already.

what are the questions?