Final answer:
In medical procedures, both veins and arteries can be elevated to gain better access during procedures such as catheter insertion or surgery.
Step-by-step explanation:
In medical procedures, both veins and arteries can be elevated. Elevating veins or arteries can help healthcare professionals gain better access to the blood vessels during procedures such as inserting a catheter or performing surgery.
For example, in procedures involving the internal jugular veins or subclavian veins, healthcare professionals may elevate them to reduce blood flow and enhance visualization.
So the correct answer is Both (C).