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
Focus group discussion should have 
Select and explain. 
A. 4 - 6 members, B. 6 - 12 members, C. > 12 members, D. < 4 members
B: 6 - 12 members
Answer: B: 6 - 12 members 
Explanation: None