PLEASE HELP, I’LL GIVE BRAINLIEST! THANK YOU. :)

Answer:
B: The transport of nutrients, water, and oxygen to the rest of the body cells.
Explanation:
A = The digestive system (your guts and food)
B = The cardiac system (heart and veins)
C = The nervous system (brain and nerves)
D = The skeletal system (your bones)
Please mark as brainliest :D