Which one is the correct route through which pulse making impulse travels in the heart

The correct route through which pulse-making impulse travels in the heart is

The correct route through which pulse-making impulse travels in the heart is

The correct route through which pulse-making impulse travels in the heart is

The correct route through which pulse-making impulse travels in the heart is

Which is the correct route through which pulse making impulse travels in the heart?

Which is the correct route through which pulse making, impulse travels in the heart? (A) SA node - - - - AV node - - - Bundle of His - - - - Purkinje fibres (B) AV node - - - Bundle of His - - - - SA node - - - Purkinje fibres - - - heart muscles (C) AV node - - - SA node - - - Purkinje fibres - - - Bundle of His - - - heart muscles (D) SA node - - - Purkinje fibres - - - Bundle of His - - - AV node - - - heart muscles.

Pathway of impulse or correct route through which pulse making impulse travels in the heart

Which one is the correct route through which impulses travles in the hearts ?