This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Social & Preventive Medicine
All are true about randomized control trial except? 
Select and explain. 
A. Baseline characteristics of intervention and control groups must be similar, B. Investigator bias can be minimized by double blinding, C. The sample size depends on the hypothesis tested, D. Drop outs should be excluded from the analysis
D: Drop outs should be excluded from the analysis
Answer: D: Drop outs should be excluded from the analysis 
Explanation: Based on Intention to Treat analysis, the drop outs should also be included in the analysis to prevent an error in the result Ref : Park's Textbook of Preventive medicine