Answer True or False to the following questions and briefly justify your (a) The Stop-and-Wait protocol is the same as the Selective Repeat protocol with a sender and receiver window size of 1. (b) With the Selective Repeat protocol, it is possible for the sender to receive an ACK for a packet that falls outside of its current window. (c) With Go-Back-N, it is impossible for the sender to receive an ACK for a packet that falls outside of its current window. (d) Selective Repeat can buffer out-of-order delivered packets, while Go-Back-N cannot. Therefore, SR saves network communication cost (by transmitting less) at the cost of additional memory.