You are presented with the question "Bacterial infection can inhibit ejaculation of what?" and the following answer choices: 
- babies
 - sperm
 - sugar
 - animals
 - erection
 - eggs
 - humans
 - pregnancy

Now knowing that ejaculation occurs when muscle contractions propel sperm from the epididymes and bacteria usually cause epididymitis, choose the best answer.


 

  sperm       