6. Suppose two hosts A and B are connected by a router. Host A is separated by 10,000Km from the router, and connected by a direct link of R = 3Mbps. Host B is separated by 20,000Km from the router, and connected by a direct link of R2 = 5Mbps. Suppose the propagation speed of the link is 2.5x10 m/s. a. Calculate the bandwidth-delay product for the first link, between host A and the router. b. Calculate the total delay for sending 100,000 bytes message from host A to host B, ignore queueing and processing delay. c. Provide an interpretation of the bandwidth-delay product