Why Are Individuals with Narcissistic Personality Disorder Most Likely to Become

Why are individuals with narcissistic personality disorder most likely to become depressed?

A) because they seldom live up to their unrealistic expectations of themselves
B) because they are involved in an endless search for the ideal person who will meet their unfulfilled empathic needs
C) because they feel that others don't understand and appreciate them
D) because they become upset when their intimate relationships fail