How Would a Nurse Differentiate a Client Diagnosed with Panic

How would a nurse differentiate a client diagnosed with panic disorder from a client diagnosed with generalized anxiety disorder (GAD) ?

A) GAD is acute in nature, and panic disorder is chronic.
B) Chest pain is a common GAD symptom, whereas this symptom is absent in panic disorders.
C) Hyperventilation is a common symptom in GAD and rare in panic disorder.
D) Depersonalization is commonly seen in panic disorder and absent in GAD.