Time needed to perform an integrity check, lookup packet information in a local table and move the packet from an input link to an output link in a router.

Time spent waiting in packet buffers for link transmission.

Time spent transmitting packets bits into the link.

Transmission delay

Time spent waiting in packet buffers for link

transmission.. You selected Processing delay.

Time need for bits to physically propagate through the transmission medium from end one of a link to the other.