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: Social & Preventive Medicine
[{'content': 'Effect of environment on genes is called- \nSelect and explain. \nA. Positive Eugenics, B. Negative Eugenics, C. Euthenics, D. Enthenics', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Euthenics", 'role': 'assistant'}]