Mark believes that most of his so-called friends actually are conspiring against him and would betray him if given the opportunity. As such, he is emotionally guarded and does not reveal personal secrets to anyone. Mark's behavior is consistent with which personality disorder?A. Paranoid Personality disorderB. Histrionic Personality disorderC. Narcissistic Personality disorderD. Borderline Personality Disorder
Paranoia is when you believe something is going to happen when it's really not. None of the other answers represented his personality except for paranoia.
