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: Gynaecology & Obstetrics
Crown-Rump length of 120 mm means the gestational age is: 
Select and explain. 
A. 10 weeks, B. 14 weeks, C. 18 weeks, D. 20 weeks
B: 14 weeks
Answer: B: 14 weeks 
Explanation: None