Which of the Following Correctly Lists the Sequence of Structures

Multiple Choice

Which of the following correctly lists the sequence of structures that a cardiac action potential follows in order to excite normal contraction of the heart?

A) Bundle of His,Purkinje fibers,Atrioventricular (AV) node
B) Sinoatrial (SA) node,Purkinje fibers,AV node,Bundle of His
C) Purkinje fibers,AV node,SA node,Bundle of His
D) SA node,AV node,Bundle of His,Purkinje fibers
E) Bundle of His,SA node,AV node,Purkinje fibers