"although jenna had never given rob any reason to suspect her of being unfaithful to him, whenever jenna went out without him, rob constantly questioned her about her behavior and whereabouts when she returned. after rob's behavior started to become even more controlling, jenna finally told rob she didn't want to date him anymore. rob reacted with rage and more accusations. after the breakup, rob began following her. jenna finally got a restraining order to make him stop. in this scenario, rob is displaying behaviors that characterize personality disorder. a. paranoid b. borderline c. narcissistic d. antisocial"