Fact 1: Endocrine hormones travel throughout the body in the blood.

Fact 2: Endocrine glands secrete directly into the blood.

Given the two facts above, answer the question "what do glands secrete?" with the following options: 
- Energy.
 - thiamine
 - vitamins
 - allow growth
 - Energy
 - hormones
 - Bodily water
 - brain


 

      hormones   