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': 'All of the following are the mode of transmission of leprosy except - \nSelect and explain. \nA. Breast milk, B. Blood transfusion, C. Transplacental spread, D. Droplet infection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p> Mode of transmission of Leprosy are droplet infection, contact transmission,insect bite,tattooing needles,breast milk,trans placental . Reference:Park&;s textbook of preventive and social medicine,K.Park,23rd edition,page no:317-318 <\\p>', 'role': 'assistant'}]