The answer is D a person who put is on a positive performance under pressure
A topic is like a title of a book and a Unit is like the chapters in the book.
Answer:
The Fall of the House of Usher is Poe's classical piece of this type. It presents terrifying atmosphere, the dark plot, and man's psychological terror to reveal the process of disintegration and annihilation of human mind, thus offering readers specific aesthetic perception through psychological shocks.