Which of the Following Is NOT True About Treatment Evaluation

Which of the following is NOT true about treatment evaluation?

A) It is used to document the extent to which psychological services such as psychotherapy are effective in achieving stated goals.
B) Outcome data is too subjective and therefore is ineffective at measuring improvement in any part of psychological services.
C) One study showed that there is no significant correlation between the mental health professional's perception of client improvement and data from self-report measures completed by client.
D) None of the above.