This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: HC Methods, D-P Communication, Subject name: Social & Preventive Medicine
[{'content': 'A Female health worker has to teach women in Urban slum about ORS preparation. Best method will be \nSelect and explain. \nA. Lecture, B. Flipcha, C. Demonstration, D. Workshop', 'role': 'user'}, {'content': "Answer: C \nExplanation: Demonstration -Is a carefully planned presentation where idea is to show ' how to perform' a skill/procedure Two principles : 1. Seeing is believing 2. learning by doing", 'role': 'assistant'}]