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 person is very impatient, competitive and works like a perfectionist. He or she can be best described as \nSelect and explain. \nA. Type A personality, B. Type B personality, C. Type C personality, D. Type D personality', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Type A personality is characterized by competitive, hardworking, time bound & impatient behaviour.', 'role': 'assistant'}]