Fact 1: Fertilization occurs when sperm swim to an egg inside an archegonium.

Fact 2: Male gametes are sperm.

Given the two facts above, answer the question "when fertilization occurs, what swims to an egg inside an archegonium?" with the following options: 
- egg shells
 - male gametes
 - yolk
 - h2o
 - barnacles
 - Something to move
 - pollen
 - flow of electrons


 

  male gametes       