Which of the Following Statements About the Effectiveness of Psychotherapy

Which of the following statements about the effectiveness of psychotherapy is true?

A) Most people with psychological symptoms seek help from a mental health professional.
B) Research has consistently shown that most people must be in psychotherapy for a year or longer before any significant improvements occur.
C) The gains that people make as a result of psychotherapy,including brief forms of psychotherapy,tend to be long-lasting with less chance of relapse.
D) As a general rule,the benefits of psychotherapy are minimal when compared with the almost identical improvement rates of untreated people with psychological problems.