What is the defining characteristic of a manic episode? a. Reduced energy levels b. Social withdrawal c. Depressive mood for at least, two weeks d. Elevated or irritable mood lasting at least one week

The defining characteristic of a manic episode is:<br /><br />d. Elevated or irritable mood lasting at least one week<br /><br />During a manic episode, individuals often experience an abnormally elevated or irritable mood, increased energy levels, and may engage in risky or impulsive behaviors. This state can last for at least one week and may be accompanied by other symptoms such as decreased need for sleep, grandiosity, and pressured speech.