What is the correct progression of the cardiac impulse?

A) Atrioventricular (AV) node, sinoatrial (SA) node, Purkinje fibers, bundle of His
B) SA node, bundle of His, AV node, Purkinje fibers
C) SA node, AV node, bundle of His, Purkinje fibers
D) AV node, Purkinje fibers, SA node, bundle of His