The treatment recommended for a patient at the mental health clinic is phototherapy. What is the likely diagn

a) panic disorder c) dysthymic disorder
b) bipolar disorder d) seasonal affective disorder

d) seasonal affective disorder

Probably d). Normally the term refers to treatment by light, but I notice in googling that there's at least one psychiatrist who uses the term to refer to a treatment program involving photographs. In this use of the term it could well be used to treat people with c).