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
Asthenozoospermia is 
Select and explain. 
A. Increased abnormal forms of sperm, B. Decreased sperm motility, C. Absence of sperms in semen, D. Increased white cells in semen
B: Decreased sperm motility
Answer: B: Decreased sperm motility 
Explanation: Asthenozoospermia is decreased sperm motility.