Which of the following is an example of an anxiety disorder?

• A. Major depressive disorder
• B. PTSD
• C. Bipolar disorder
• D. Attention deficit disorder

Answer: (B)

Anxiety disorders involve excessive fear, worry, or related physical symptoms that interfere with daily life. PTSD fits this pattern because after a traumatic event a person often experiences ongoing fear and distress: intrusive memories or flashbacks, avoidance of reminders, negative changes in mood or thinking, and heightened arousal (being easily startled, on edge). These symptoms persist for a long time and impair functioning, which is characteristic of an anxiety-related condition. The other options point to different categories—major depressive disorder centers on persistent low mood and anhedonia; bipolar disorder involves mood swings between depression and mania; attention deficit disorder (ADHD) centers on inattention and hyperactivity. So the example that best aligns with anxiety-related symptoms is PTSD.