This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
A 30 year-old-female presented in the emergency with sudden onset tachycardia and sense of impending dooms. Possible diagnosis is: AIIMS 10 
Select and explain. 
A. Conversion reaction, B. Anxiety disorder, C. Acute psychosis, D. Panic attack
D: Panic attack
Answer: D: Panic attack 
Explanation: Ans. Panic attack