Which statement is correct about Spanning Tree Protocol?

A. STP runs on a central switch by creating a topology database.
B. STP runs as a distributed process on each switch and creates a topology database.
C. STP uses routing protocols to check for network loops.
D. STP uses the MAC address table to check for switching loops.

B. Spanning Tree Protocol runs as a distributed process on each switch. Each switch creates and maintains its own topology database referencing the root bridge.