Which of the Following Statements Applies to the Condition Known

Which of the following statements applies to the condition known as seasonal affective disorder (SAD) ?

A) Women with SAD reported more autonomous negative thoughts throughout the year than women without SAD.
B) People with SAD have symptoms of decreased sleep and decreased appetite.
C) Depression in vulnerable people might be triggered by decreased production of the hormone called melatonin.
D) SAD can be treated with phototherapy, i.e.two hours of exposure to bright light just before going to sleep.