Which of the following disorders is characterized by the most sudden and unpredictable episodes of distress?

A) social phobia
B) panic disorder
C) specific phobia
D) alcohol dependence

Panic Disorder

A psychiatric disorder characterized by recurrent unexpected panic attacks and fear of future attacks, leading to significant distress or impairment in functioning.

Unpredictable Episodes

Sudden and unforeseen occurrences or events, often related to health conditions, that can significantly impact an individual's well-being or the state of a situation.

Distress

A negative stress reaction to an external stressor, characterized by anxiety, worry, or physical stress symptoms.