A process is classified as 'I/O-bound.' Which scheduling characteristic would most directly benefit this type of process and the system's overall responsiveness?

I/O-bound processes spend most of their time waiting on I/O operations and only need brief bursts of CPU time between those waits; giving them relatively higher priority lets them quickly use the CPU just long enough to issue their next I/O request and then yield it back, keeping I/O devices busy and improving overall system throughput and responsiveness. A very long time quantum would be wasted on such a process, since it rarely needs sustained CPU time anyway. Preventing I/O access entirely contradicts the nature of an I/O-bound process. Forcing it to wait behind all CPU-bound processes would starve it unnecessarily, and a strict non-preemptive FCFS policy would prevent the kind of quick, frequent scheduling that benefits I/O-bound workloads.