The American novelist Nathaniel Hawthorne is known for his " black vision “. The term " black vision" refers to ().
选项：

A: Hawthorne's observation that every man faces a black wall
B: Hawthorne's belief that all men are by nature evil
C: that Hawthorne employed a dream vision to tell his story
D: that Puritans of Hawthorne's time usually wore black clothes