You are presented with the question "Something that swims from male to female reproductive organs for fertilization uses what to move?" and the following answer choices: 
- Energy
 - Tail
 - Brain
 - seeds
 - Legs
 - Arms
 - a path
 - heat

Now knowing that sperm had to swim from male to female reproductive organs for fertilization and sperms swim with their tails, choose the best answer.


 

  Tail       