Put in Correct Order the Sequence in Which Excitation Would

Multiple Choice

Put in correct order the sequence in which excitation would move through the conducting system of the heart: 1.Purkinje fibers 4. SA node
2) AV bundle 5. bundle branches
3) AV node

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