providing structural support to muscles carrying oxygen to cells getting energy from food sending messages to the brain
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Mr. Mendoza's class studied different body systems. What is an important function of the circulatory system?
Possibilities:
- providing structural support to muscles
- carrying oxygen to cells
- getting energy from food
- sending messages to the brain

carrying oxygen to cells