This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'HIV C subtype is seen in - \nSelect and explain. \nA. India, B. Europe, C. America, D. Thailand', 'role': 'user'}, {'content': 'Answer: A \nExplanation: <p> HIV-C is most common in India. Reference:HIV/AIDS care and counselling by ACV Dyk,4th edition,page no.21.', 'role': 'assistant'}]