A) A-Sinoauricular node, B-Atrioventricular node, C-Bundle of His, D-Purkinje fibre
B) A-Sinoauricular node, B-Atrioventricular node, C-Purkinje fibre, D-Bundle of His
C) A-Purkinje fibre, B-Atrioventricular node, C-Bundle of His, D-Sinoauricular node
D) A-Purkinje fibre, B-Bundle of His, C-Sino auricular node, D-Atriventricular node
Explanation
A-SA Node, B-AV Node, C-Bundle of His, D-Purkinje fibres