This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Epidemiology, Subject name: Social & Preventive Medicine
[{'content': 'Presence of infectious agent on clothes or dressings is termed \nSelect and explain. \nA. Infection, B. Infestation, C. Contamination, D. Contagion', 'role': 'user'}, {'content': "Answer: C \nExplanation: Contamination - the presence of an infectious agent on a body surface.; also on or in clothes; beddings; toys; surgical instruments or dressing or anther inanimate aicles or substance including water, milk, and food. Ref: 25th edition, Park's Textbook of Preventive and Social Medicine, Page no. 101", 'role': 'assistant'}]