Fact 1: Webbed feet are used for moving faster through water by aquatic animals.

Fact 2: All ducks have webbed feet.

Given the two facts above, answer the question "Why do ducks move faster through water?" with the following options: 
- Due to their coloring
 - Due to their feet
 - To keep their body heat.
 - Due to their diet
 - animals with backbones
 - Males and females
 - it keeps an organism warm
 - Due to their quacks


 

  Due to their feet       