Klein's Research Indicates That It Is Important to Supplement Self

Klein's research indicates that it is important to supplement self assessments of personality disorder with informant ratings. In Klein's seven-year longitudinal study of personality disorders in patients with a diagnosis of depression:

A) informants reports were superior to patients reports in predicting all follow-up measures of functioning.
B) patients reports were superior to informants reports in predicting all follow-up measures of functioning.
C) only the informant's ratings predicted the patient's level of social functioning.
D) only the informant's ratings predicted the patient's level of depression at follow-up.