This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'All of the following are transfusion-transmitted viruses except \nSelect and explain. \nA. Hepatitis B, B. CMV, C. HTLV - 1, D. Rubella', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Rubella infection is acquired by inhalation or transplacental route. Ref: Baveja textbook of microbiology; 4th edition', 'role': 'assistant'}]