Now suppose that there are (2) WAN links separating hosts A and B using (3) routers. The first WAN links transmission rate is 2 Mbps; the second is 4 Mbps. The propagation speeds 2.5 10" m/sec. The distance of the first WAN link is 4000 Kilometers and the distance of the second WAN link is 600 Kilometers. d. Draw the network between A and B; include hosts A and B in your picture. Label each WAN link with its transmission rate. Compute the propagation delay for sending (1) 1400 byte packet from over the WAN from A to B. Show your answer in seconds out to at least 4 decimal places. e