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: Medicine
[{'content': 'What age group is the most susceptible to sepsis? \nSelect and explain. \nA. Infants., B. Adolescents., C. Elderly, D. Young adults.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Elderly patients are at most risk for developing sepsis because of decreased physiologic reserves and an aging immune system.\n\nOption A: Infants may have less physiologic reserves yet they have vaccines that strengthen their immune system than the elderly.\nOption B:\xa0Adolescents may not have fully mature reserves yet they have a stronger immune system than the elderly.\nOption D:\xa0Adolescents may not have fully mature reserves yet they have a stronger immune system than the elderly.', 'role': 'assistant'}]