Which of the following is true regarding the early Christian church's doctrine of apostolic succession?

The doctrine of apostolic succession is primarily concerned with the continuity of spiritual authority within the church, rather than political power or governance of the Holy Roman Empire. While emperors may have been influenced by church authority, apostolic succession itself did not play a direct role in their selection.

While the Byzantine emperor did have significant influence over church matters, the doctrine of apostolic succession is not about the emperor's authority to convene councils. Instead, it pertains to the spiritual lineage and authority of the bishops, which remains distinct from political power.

Apostolic succession actually reinforced the distinction between clergy and laity by establishing a hierarchical structure within the church. The authority granted through this doctrine was specifically vested in bishops and clergy, maintaining a clear separation in roles and responsibilities.

The Cathar movement opposed many established church doctrines, including apostolic succession. Rather than being a component of their beliefs, the heresy arose from a rejection of the authority and teachings that apostolic succession represented.