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: Unknown
[{'content': 'Significant weight loss is - \nSelect and explain. \nA. 5% over 6-12 months, B. 10% over 6-12 months, C. 5% over 6 weeks, D. 10% over 6 weeks', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 5% over 6-12 months o Clinically important weight loss is defined as the loss of 10 pounds (4.5 kg) or < 5% of one's body weight over a period of 6-12 months.", 'role': 'assistant'}]