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
Removal of LI Ganglion in sympathetomy results in? 
Select and explain. 
A. Impotence, B. Retention of urine, C. Sterility, D. Causalgia
C: Sterility
Answer: C: Sterility 
Explanation: Ans. is 'c' i.e., Sterility