【单选题】

Which of the following statement about the school psychologist is TRUE
A．They are not competent in their treatment of schoolchildren because they haven't received proper training.

B．They have no proper credentials to justify their work in psychopharmacology.
C．Their involvement in psychopharmacology sometimes should be limited, as they are not as well trained and experienced as clinical psychologists do.
D．They should get a Psy. Degree before they are involved ii1 the psychological treatment of schoolchildren.