Consider a simple network that is composed of two computers (A & B) and a router X in the middle. Computer A is connected to router X by a link that is 10 Mbps and has a propagation delay of 10 msec. Computer B is connected to router X by a link that is 1000 KBps and has a propagation delay of 20 msec.

a) In order to increase the carrying capacity (number of bits on the wire) of this simple network, you are asked to compare between two propositions. The first proposition suggested to increase the bandwidth of the link between computer A and router X to 12 Mbps. The second suggested to increase the propagation delay between router X and computer B to 25 msec. Which one of these two propositions would increase the carrying capacity more?