On which network plane would a routing protocol perform?

Routing protocols such as OSPF and EIGRP would perform their function on the control plane since they are controlling the routing of the data plane. The data plane is responsible for switching and routing data. Any data that is destined for endpoints is switched or routed on the data plane. For example, when one computer pings another, the ping is switched and routed on the data plane. The management plane is any mechanism that helps in the management of a router or switch. Routing plane is not a term normally used to describe data types; therefore, option D is an invalid answer.