What is the benefit of configuring PortFast on an interface?

What is the benefit of configuring PortFast on an interface?
A. The frames entering the interface are marked with the higher priority and then processed faster by a switch.
B. After the cable is connected, the interface is available faster to send and receive user data.
C. Real-time voice and video frames entering the interface are processed faster.
D. After the cable is connected, the interface uses the fastest speed setting available for that cable type.

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