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: Pediatrics
[{'content': 'Excessive crying is seen after which vaccination - \nSelect and explain. \nA. Polio, B. DPT, C. BCG, D. Measles', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., DPT o An uncommon reaction to DPT (due to peussis) component is Prolonged screaming.", 'role': 'assistant'}]