Scenario Blood Flowing Away from the Heart Is Under Tremendous Pressure

Scenario
Blood flowing away from the heart is under tremendous pressure, able to travel to just about any portion of the body. However, blood pressure drops considerably as it moves away from the heart. When blood finally reaches capillaries, the blood pressure drops to nearly zero. Therefore, when a person is standing, blood returning from the feet is not moved back towards the heart by contractions of the heart.
-Because of the changes in blood pressure through the circulatory system, the best way to feel a pulse is by pressing a finger against ________.

A) a vein
B) a capillary
C) an artery
D) either an artery or a vein