Which statement is true regarding STP?

A.
The path between the source and the destination end stations is determined by the
lowest MAC address; the lowest MAC address will become the root port during the election.

B.
When the spanning-tree topology is calculated based on default parameters, the path
between the source and destination end stations in a switched network might not be ideal.

C.
The path between the source and the destination end stations is always ideal with the
default spanning-tree parameter.

D.
The path between the source and the destination end stations is determined by the
speed of the link; the slowest link speed will become the root port during the election.

Explanation: