Following are the stages of pathway for conduction of an action potential through the heart A. AV bundle B. Purkinje fibres C. AV node D. Bundle branches E. SA node Choose the correct sequence of pathway from the options given below

1. A. E-C-A-D-B
2. B. A-E-C-B-D
3. C. B-D-E-C-A
4. D. E-A-D-B-C

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