8) What is the following, the sequence of blood vessels, which are ordered from the HIGHEST to the LOWEST cross-sectional area?
a) Arteries, arterioles, capillaries and veins.
b) Arterioles, capillaries, arteries and veins.
c) Capillaries, arterioles, veins and arteries.
d) Veins, capillaries, arterioles and arteries.