Fact 1: Most people can survive only a few days without water.

Fact 2: Water controls the body's temperature.

Given the two facts above, answer the question "Most people can survive only a few days without controlling the body's what?" with the following options: 
- temperature
 - ideas
 - oxygen
 - menace
 - energy
 - it's state
 - Energy.
 - movement


 

 temperature        