Arianna Has Stopped Washing Her Hair, Going to the Grocery

Arianna has stopped washing her hair, going to the grocery store, and talking to people. Some people think that she must be suffering from a mental disorder. Does her behaviour fit the criteria needed to be diagnosed with a disorder?

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