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': 'Virus documented to cause fetal damage \nSelect and explain. \nA. Hepatitis A, B. Varicella, C. Measles, D. Arbovirus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Veical transmission of diseases: Disease Most common time of transmission Varicella I trimester Rubella I trimester Parvovirus II trimester Hepatitis B III trimester Toxoplasmosis III trimester Syphilis III trimester CMV Any trimester HIV During delivery Hepatitis C During delivery Ref: Park 25th edition Pgno: 102', 'role': 'assistant'}]