This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: obstetrics,pediatrics and geriatrics, Subject name: Social & Preventive Medicine
[{'content': 'Most common cause of death in the age group of 1-4 years children is - \nSelect and explain. \nA. Infections, B. Respiratory disease, C. Diarrhea, D. Malnutrition', 'role': 'user'}, {'content': "Answer: A \nExplanation: Most common cause of death of children in age group of 1-4yrs is infectionsREF. PARK'S TEXTBOOK OF PREVENTIVE AND SOCIAL MEDICAL 21ST EDITION. PAGE NO - 527", 'role': 'assistant'}]