Answer
A. Water flows because it is cohesive
Work Step by Step
"Adhesion refers to the ability of water molecules to cling to other polar surfaces. This is a result of water’s polarity. Multi-cellular animals often contain internal vessels in which water assists the transport of nutrients and wastes the cardiovascular system." "For example, the liquid portion of our blood, which transports dissolved and suspended substances about the body, is 90% water."
