Consisting of the heart, blood vessels, and blood, this system circulates blood throughout the body, delivers nutrients and other essential materials to cells, and removes waste products.
Well, since you haven't listed any options for me to choose from, I will give you this definition (which is still correct):
<u><em>The circulatory system is a system that circulates blood and lymph through the body, consisting of the heart, blood vessels, blood, lymph, and the lymphatic vessels and glands.</em></u>
hope i helped you out :) and brainliest is always appreciated
When your body is not healthy it tends to become stressed. To fix this you need to change what you eat and some simple life style changes like exercise.