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
Remote after loading technique useful for 
Select and explain. 
A. Teletherapy, B. Brachytherapy, C. Stercotactic radiotherapy, D. None
B: Brachytherapy
Answer: B: Brachytherapy 
Explanation: Ans. Teletherapy