Arrange the structures in the following list in the order that blood will encounter as it flows from the heart back to the heart in the cardiovascular circuit.
1.venules
2)arterioles
3)capillaries
4)elastic arteries
5)medium veins
6)large veins
7)muscular arteries
A)7,4,2,3,1,5,6
B)6,5,1,3,2,7,4
C)5,6,1,3,2,7,4
D)2,7,6,3,1,5,6
E)4,7,2,3,1,5,6