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: Psychiatry
[{'content': 'A 30 year old lady c/o sudden onset breathlessness, anxiety, palpitation & feeling of impending doom. Physical examination is normal. What is the diagnosis: \nSelect and explain. \nA. Panic attack, B. Anxiety disorder, C. Conversion disorder, D. Acute psychosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Panic attack', 'role': 'assistant'}]