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: Forensic Medicine
External ballottement can be done after how many weeks of gestation: Manipal 10 
Select and explain. 
A. 6 weeks, B. 16 weeks, C. 20 weeks, D. 24 weeks
C: 20 weeks
Answer: C: 20 weeks 
Explanation: Ans. 20 weeks