What is the path cost in respect to RSTP?

A. Path cost is the latency of a frame traversing across the link.
B. Path cost is the calculation of all the ports in the path to the root bridge.
C. Path cost is the monetary cost to traverse a link.
D. Path cost is a numeric value associated with the speed of a link.

B. The RSTP path cost is the calculation of all of the link costs that lead back to the root bridge. The link cost is a numeric value that signifies the speed. The lower the number “cost,” the higher the speed of the link.