Question

arteries, capillaries or veins. which two words would best replace \structure\ and \purpose\ in the selection above? a system and goal b design and reason c form and function d shape and intention

Explanation:

"Form" is a synonym for "structure" as it refers to the physical makeup or appearance. "Function" is a good replacement for "purpose" as it describes what something does or its role.

Answer:

C. form and function