Which process is associated with spanning-tree convergence?

Which process is associated with spanning-tree convergence?
A . determining the path cost
B . electing designated ports
C . learning the sender bridge ID
D . assigning the port ID

Answer: B

Explanation:

Spanning Tree Protocol (STP) convergence (Layer 2 convergence) happens when bridges and switches have transitioned to either the forwarding or blocking state. When layer 2 is converged, Root Switch is elected and Root Ports, Designated Ports and Non-Designated ports in all switches are selected. At Converged condition, the Root Ports and the Designated ports are in forwarding state, and all other ports are in blocking state.