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: Pharmacology
[{'content': 'Idiosyncracy is known as to have \nSelect and explain. \nA. Genetic component, B. Psychological component, C. Physiological component, D. Nutritional component', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]