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': 'In a well designed clinical trial of treatment of ovarian cancer, remission rate at one year is similar for a new drug and usual care, The P-value is 0.4. This means that \nSelect and explain. \nA. Both treatments are effective, B. Neither treatment is effective, C. The statistical power of study is 60%, D. The best estimate treatment effect is 0.4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The facilities is not effective at the given particular treatment centers.', 'role': 'assistant'}]