Which Is More Effective at Treating Psychological Problems,psychotherapy or Medication

Which is more effective at treating psychological problems,psychotherapy or medication?

A) Research has shown that psychotherapy is the most effective treatment for psychological problems.
B) Research has shown that medication is the most effective treatment for psychological problems.
C) Research has shown that neither psychotherapy nor medication is significantly better than the other at helping to treat psychological problems.
D) The determination of whether psychotherapy or medication is better depends on the person and the condition being treated. Sometimes it is one or the other, and sometimes it is both together.