Question

a period of extreme elation, euphoria, and hyperactivity, often accompanied by delusions of granduer and by hostility if activity is blocked.
○ manic episodes
○ depressive episodes
○ delusional episodes
○ schizoid episodes

Explanation:

The description matches manic episodes (extreme elation, hyperactivity, delusions of grandeur, hostility when blocked). Depressive episodes involve low mood, delusional episodes are not a standard term for this, and schizoid episodes relate to detachment, not these symptoms.

Answer:

A. manic episodes