Fact 1: Loud noises can cause animals to startle.

Fact 2: All mammals are animals.

Given the two facts above, answer the question "What does loud noises often do to mammals?" with the following options: 
- decrease stamina
 - comfort them
 - inspire them
 - quiet them
 - kill them
 - to move people
 - startle them
 - Movement


 

       startle them  