How do arterioles contribute to the regulation of blood pressure and blood flow distribution?
A. They store large volumes of blood to buffer fluctuations in arterial pressure
B. They prevent backflow of blood by maintaining one-way valve function
C. They expand or contract to direct blood to tissues with greater metabolic demand
Answer in the poll, then explain your rationale below in the comments! I'll follow up with my breakdown of the question after enough people have responded.
From Chapter 1: Structure and Function of Body Systems
DCO Code: 1.G1
NOTE: Image is for illustration purposes, not needed to answer the question.