In the last three days, doug has become progressively more energetic and euphoric. he has been sleeping no more than an hour or two a night, but he seems to have unlimited energy. doug is inappropriately self-confident as he veers from one grandiose idea to another in his plans to become rich and famous. doug appears to be experiencing: (a) a major depressive episode(b) negative symptoms of schizophrenia(c) dissociative personality disorder(d) a manic state

D, a manic state

Explanation:

Manic episode (state) is part of a condition called bipolar disorder.

This episode is characterized by elevated mood, inflated self-esteem, decreased need for sleep, extreme cognitive productivity and excessive involvement in pleasurable activities.

The maniac phase last for about couple of days, usually less than a week. It is followed by a depressive episode where the affected person feels abandoned, lost, full of doubts and without the will to do anything at all.