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
Features of intestitial therapy are all except: 
Select and explain. 
A. Only used in head & neck, B. | Damage to normal tissue, C. Temporary or permanent, D. All
A: Only used in head & neck
Answer: A: Only used in head & neck 
Explanation: A i.e. Only used in head & neck