Regarding sexual dysfunctions, which of the following statements is FALSE?

a. Most people who seek counseling usually have one or more of the four types of sexual dysfunctions.
b. Those with sexual dysfunctions may be helped by medical treatment or drugs if the sexual problem has a clear physical cause.
c. Psychotherapy has not been shown to be effective in helping people who suffer from sexual dysfunctions.
d. Sexual dysfunctions are far more common than many people realize.

C