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: Surgery
Post operative radiotherapy in breast is given for? 
Select and explain. 
A. To prevent metastasis, B. Ablation of remnant of cancer tissue, C. To prevent recurrence, D. Prevents distal metastasis
C: To prevent recurrence
Answer: C: To prevent recurrence 
Explanation: Ans. is 'c' i.e. To prevent recurrence