Over the Past Two Years, Kelly Has Experienced Depressive Episodes

Over the past two years, Kelly has experienced depressive episodes three different times. Two of the three episodes occurred in the winter and the third occurred last spring. It is now winter and Kelly's depressive symptoms once again are consistent with major depressive disorder. Which of the following diagnoses should she be given?

A) dysthymic disorder
B) recurrent major depressive disorder with a seasonal pattern
C) recurrent major depressive disorder
D) chronic major depressive disorder