The Second-Degree Block,type II,represents a Complete Block Of

The second-degree block,type II,represents a complete block of:

A) the AV node as well as a partial block of the SA node.
B) all of the intranodal pathways and the AV node.
C) both of the bundle branches and partial block of the bundle of His.
D) one of the bundle branches and a partial block of the other branch.