An internal conflict is an example with oneself (for example: should I be healthy and exercise or should i have this cake and feel happy about it;) ) - so the correct answer is <span>character vs. self.
the remaining options are external conflicts. </span>
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