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: Radiology
Point B in treatment of Ca Cervix by radiotherapy corresponds to: 
Select and explain. 
A. Ohturator nodes, B. Mackenrodts ligament, C. Ischia] tuberosity, D. Round ligament
A: Ohturator nodes
Answer: A: Ohturator nodes 
Explanation: Ans. Ohturator nodes