This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: RCT, Trials, Subject name: Social & Preventive Medicine
[{'content': 'In a Prospective study, 1200 patient were randomly selected to study the effect of a New drug. The drug will be given for 5 years and its association with cataract will be studied. What type of study is this? \nSelect and explain. \nA. Case control study, B. Coho study, C. Randomized clinical trial, D. Cross sectional study', 'role': 'user'}, {'content': 'Answer: C \nExplanation: If you are giving a drug so it is a experimental study or trial If we have a comparison group in which you give some other drug or placebo then also it is randomized clinical trial Hea of RCT- Randomization ( applied while allocating them or dividing them into reference group.) Equal & known chance is present.', 'role': 'assistant'}]