Are professionals with a ph. d. or psy. d. who have also completed a postgraduate internship. they specialize in assessment and treatment of psychological difficulties, providing psychotherapy and, in some u. s. states, can prescribe drugs.
a. psychoanalystsb. psychiatristsc. psychiatric social workersd. clinical psychologists

D. Clinical psychologists

Explanation:

Clinical psychologist: A clinical psychologist consists of a doctoral degree in psychology (the study of human behavior & mind) yet not a medical doctor. A clinical psychologist usually has a PsyD in counselling or clinical psychology or PhD in philosophy and also have done one or two years of clinical internship.

A clinical psychologist meets the clients and identifies various problems including behavioral, mental, and emotional in their lives. The psychologist will diagnose the client's potential or existing disorders through interviews, observations, clinical assessments, and tests, and in some cases, the psychologist often prescribes medicine otherwise treat the client with psychotherapy or counselling.