What is the best description of serialization delay？ （）
- Athe time it takes for a Layer 3 switch or a router to switch a packet from an inbound interface to the queue of the outbound interface
- Bthe time it takes for a propagate from source to destination
- Cthe time it takes to place a frame on the physical medium for transport
- Dthe time a packet resides in the outbound queue of a router