If when the muscles around the prostate gland contract, sperm is propelled from the epidiymes, then what happens when muscles around the prostate gland contracts?

Answer choices:
- preventing heat transfer
 - The bending of a ray of light
 - Generating heat
 - Warm air moving into cold air
 - Sperm leaves the epidiymes
 - heat produced
 - Release energy
 - rapid expansion

 

     Sperm leaves the epidiymes     