Put These Autorhythmic Cells into the Correct Order for Conveying

Put these autorhythmic cells into the correct order for conveying electrical signals through a normal heart.
1) bundle of His
2) internodal pathway
3) Purkinje fibers
4) atrioventricular node
5) sinoatrial nodes
6) left and right bundle branches

A) 5, 2, 1, 6, 4, 3
B) 5, 2, 4, 1, 6, 3
C) 4, 2, 5, 1, 6, 3
D) 3, 6, 1, 4, 2, 5
E) 5, 4, 1, 6, 2, 3