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
The incidence of lymph node metastasis in carcinoma cervix stage II is : 
Select and explain. 
A. 5-10 %, B. 15-20 %, C. 25-40 %, D. 50-60
B: 15-20 %
Answer: B: 15-20 % 
Explanation: 15-20 %