Tiana Cries for Several Hours a Day

Tiana cries for several hours a day. She is having difficulty going to work and maintaining her GPA. The death of her father two weeks ago is hitting her hard. In this case, Tiana's depression is

A) abnormal because it has lasted too long.
B) normal because it has not been an extensive duration and has occurred in response to an understandable cause.
C) abnormal because it has no explanation.
D) normal but it would be considered abnormal if her crying bouts lasted longer on a daily basis.
E) normal but would be considered abnormal if she was still able to attend work and school.