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: Gynaecology & Obstetrics
Asthenosperima means : 
Select and explain. 
A. Failure of the formation of sperms, B. No spermatozoa in the semen, C. Reduction in the motility of sperms, D. Sperm count less than 20 million / ml of semen
C: Reduction in the motility of sperms
Answer: C: Reduction in the motility of sperms 
Explanation: Reduction in the motility of sperms