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: Social & Preventive Medicine
All are true about NSV.  except, 
Select and explain. 
A. Also know as 'key hole vasectomy', B. Painful procedure, C. Less Invasive, D. Surgical hook used
B: Painful procedure
Answer: B: Painful procedure 
Explanation: None