Deena Has Major Depressive Disorder

Deena has major depressive disorder. Most days she feels very sad, but when her sister came and told Deena she was going to be an Aunt, Deena felt happy for a little while. She has been gaining weight and sleeping much of the day. Deena most likely has

A) double depression.
B) psychotic features.
C) atypical features.
D) melancholic features.