Charles Is a Man Whom the Local College Students All

Charles is a man whom the local college students all think of as eccentric. Each day he stands on campus, smiling at people as they walk by, and he is known for his ever-present greeting of "Good luck!" In fact, the students at this campus have come to refer to him as "Good Luck Chuck." Nobody knows if he has a home or if he is destitute, but Charles never asks for anything. Which of the four criteria of mental illness might Charles satisfy?

A) inability to function normally
B) social norm deviance
C) subjective discomfort
D) objective discomfort