Arianna Refuses to Eat,has Stopped Bathing,has Quit Going to Work

Arianna refuses to eat,has stopped bathing,has quit going to work and paying bills,and no longer talks to people.Should Arianna be diagnosed with a mental disorder?

A) No,her behavior may be odd,but it is adaptive for her.
B) No,but her behavior differs from the norms of her culture.
C) Yes,her behavior is clearly causing her personal distress.
D) Yes,her behavior is maladaptive.