This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunization, Subject name: Pediatrics
[{'content': 'Immunoglobulin is not used in prophylaxis of: \nSelect and explain. \nA. Hepatitis A, B. Varicella, C. Influenza, D. Measles', 'role': 'user'}, {'content': "Answer: C \nExplanation: c. Influenza(Ref: IAP Guidebook on immunization 2013-2014, p 378, Nelson's 20/e p 1603, Ghai 8/e p 201-202)Following immunoglobulins are used for secondary prophylaxis: Tetanus, Hep A, Hep B, Rabies & Varicella Ig.", 'role': 'assistant'}]