Over the past few years, Katarina’s moods have fluctuated between elevated and depressed, but she has maintained adequate functioning on a day-to-day basis. Like the other 3 to 4% of young adults like her, she is probably exhibiting:

A. bipolar II disorder with full interepisode recovery.

B. atypical depression with manic features.

C. cyclothymic disorder.

D. hypomanic-depressive disorder.