Consider sending a large file of F bits from host A to host B. A and B are connected by a route of L links, and the links are not congested (that is, no queuing delays). Host A partitions the file into segments of S bits each (assume F is a multiple of S) and adds H bits of header to each segment, forming packets of S + H bits. Each link has a transmission rate of R bps. Find the value of S that minimizes the delay of moving the file from host A to host B, neglecting propagation delay.