Fact 1: Insect bites cause harm to living things.

Fact 2: Insect repellents are used against flea bites.

Given the two facts above, answer the question "How can you prevent harm caused by flea bites?" with the following options: 
- Bathing your dogs
 - Using repellent
 - Eating healthier
 - Endocrine system
 - prolactin release
 - an external framework
 - focusing a lens
 - Drinking water


 

  Using repellent       