Colleen found herself attracted to her psychology instructor. She would frequently go by his office just to be near him. When he didn’t respond to her advances, Colleen eventually told him that she had thoughts of killing herself so that he would spend time trying to counsel her. What personality disorder best describes Colleen’s thinking and behavior?

a. borderline personality disorder

b. schizoid personality disorder

c. schizotypal personality disorder

d. antisocial personality disorder