to move water throughout the body to provide structural support for the body to eliminate waste from the body to transport gases throughout the body
I gave my students this multiple choice question: Which is a function of the cardiovascular system?

Only one answer is correct among these 4 choices:
- to move water throughout the body
- to provide structural support for the body
- to eliminate waste from the body
- to transport gases throughout the body

Could you tell me which one is correct?

to transport gases throughout the body