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: Social & Preventive Medicine
[{'content': 'Maternal antibodies do not occur for - \nSelect and explain. \nA. Polio, B. Diptheria, C. Whooping cough, D. Tetanus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]