Suppose a 200-Mbps point-to-point link is being set up between Earth and a new lunar colony. The distance from the moon to Earth is approximately 385,000 km, and data travels over the link at the speed of light 3x108 m/s. (a) Calculate the minimum RTT (round trip time the time for the signal to go and come back) for the link. (b) Suppose Mission Control on Earth wishes to download a 8GB image from a camera on the lunar base. What is the minimum amount of time that will elapse between when the request for the data goes out and the transfer is finished?