How Were the Symptoms of Seasonal Affective Disorder Unique,compared to Those

How were the symptoms of seasonal affective disorder unique,compared to those of other types of depression?

A) Symptoms consistent with depression would only occurred after travelling to a different time zone.
B) Symptoms consistent with depression would generally appear during the summer months and disappear in the winter months.
C) Symptoms consistent with depression would generally appear during the autumn or winter months and disappear in the spring and summer months.
D) Symptoms consistent with depression would only occurred after travelling to a different time zone during the summer months.