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: Dental
[{'content': 'Which of the following will spread from one patient to another by touch is? \nSelect and explain. \nA. Herpes labialis, B. HBV, C. HIV, D. Malaria', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]