The correct answer is A. A panic attack.
Explanation
Panic attacks are temporary periods of scary, fear, anxiety, and other negative feelings, that occur spontaneously when people are in situations that can be considered maddening or overwhelming. Additionally, a panic attack produces physical symptoms like tachycardia, shortness of breath, pulmonary hyperventilation, involuntarily shaking, tremor or dizziness. From above, it can be said that Derek had a panic attack because he was in a situation that caused overwhelming for him and his symptoms were spontaneous and involuntary. So, the correct answer is A. A panic attack.
