Which of the following shows the components of the cardiac conduction system in the correct sequence?
A. AV bundle, left and right bundle branches, SA node, AV node, Purkinje fibers
B. SA node, Purkinje fibers, AV node, AV bundle, left and right bundle branches
C. AV node, SA node, Purkinje fibers, AV bundle, left and right bundle branches
D. SA node, AV node, AV bundle, left and right bundle branches, Purkinje fibers
E. Purkinje fibers, left and right bundle branches, AV bundle, SA node, AV node
Answer: D
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