The answer to your question is D.
The parts of Edgar Allan Poe's excerpt "the fall of the house of Usher" that bring out gloomy and oppressive mood would be the part the narrator found out that usher got a mental illness. Usher begged his friend to come and see what's wrong with him.
hope this helps
Hiya,
I believe the answer is
C, the author notes that most people do not enjoy doing the research required to discover the truth.
Hope This Helps! :)
