Blood travels away from the heart through which vessels?
A. veins->venules-> capillaries->arterioles->arteries->back toward the heart
B. arteries->arterioles->capillaries->venules->veins->back toward the heart
C. arterioles->arteries->capillaries->venules->veins->back toward the heart
D. capillaries->veins->venules->arteries->arterioles->back toward the heart