This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
[{'content': 'Phase 3 clinical trial is also called as \nSelect and explain. \nA. Human pharmacology, B. Post marketing surveillance, C. Therapeutic exploration, D. Therapeutic confirmation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Phase 3 trial-done on 1000s of patients in various centers- multicentric, double-blinded after completion of phase 3, new drug will be released into the market Reference: Katzung's Pharmacology; 13th edition; Chapter 5; Development & Regulation of Drugs", 'role': 'assistant'}]