Tess has been extremely hyperactive for the last three days. She is talkative and has been getting by with only two hours of sleep each night. She is making plans to fly solo across the Pacific Ocean, even though she has never actually had any flying lessons. In this case, it is likely that Tess is currently experiencing:

(A) a major depressive episode

(B) negative symptoms of schizophrenia

(C) dissociative personality disorder

(D) a manic state

The correct answer is D. A maniac state

Explanation:

A maniac state or episode occurs in individuals with bipolar disorder and other types of mental disorders and involve periods of time of few days or even weeks in which the individual experiences increased optimism or euphoria which makes it more talkative, feeling more confident than normal, trying to do unusual activities or achieve irrational goals and sleeping less. This kind of episodes might represent a risk for the individual because in some cases they lead to irrational actions.

This is the type of episode or state Tess is experiencing because she is hyperactive and more talkative. But besides this, she plans to fly solo across the Pacific Ocean which is an irrational goal and she is sleeping less. All of these behaviors and features are part of a manic state, which also implies Tess might have a bipolar disorder.