Correct (C): GAD is excessive, uncontrollable worry across many areas plus physical/cognitive symptoms such as muscle tension, restlessness, fatigue, and poor concentration.
- Why C: Classic GAD “worry + tension” presentation.
- Why not A: PTSD hallmark symptoms.
- Why not B: OCD hallmark symptoms.
- Why not D: Panic disorder involves discrete panic attacks, not persistent generalized worry.