Abigail has noticed that rose, her roommate, experiences extreme shifts in her moods and behavior. of late, abigail noticed that rose is unusually energetic and optimistic even though she hasn’t been sleeping much. she is also highly distractible and delusional. this period of euphoria has lasted more than a week and is in sharp contrast to the depression and fatigue rose exhibited in the previous semester. rose is most likely to be diagnosed with

Rose is most likely to be diagnosed with bipolar disorder.

Bipolar disorder

Explanation:

Bipolar disorder is a psychological condition in which a person suffering from a high level of mood shiftiness. In this, the mood elevated at a high level called mania. This disorder includes the symptoms of depression as well. The individual who suffers from this disorder has trouble to manage their daily routine activity. It affects their school classmates' relationship, family, peers, social activity, etc. There are many types of treatment has been given to the patient such as therapies, cognitive behavior therapy, etc.  

Symptoms:

Here in the above context, Abigail's roommate Rose has symptoms that indicated she is suffering from bipolar disorder.  

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