onsider a demand$-$paged computer system where the degree of multiprogramming is currently fixed at four. The system was recently measured to determine utilization of CPU and the paging disk. The results

are one of the following alternatives. For each case, what is happening?

Can the degree of multiprogramming be increased to increase the CPU

utilization? Is the paging helping?

a$.$ CPU utilization $13$ percent; disk utilization $97$ percent

b$.$ CPU utilization $87$ percent; disk utilization $3$ percent

c$.$ CPU utilization $13$ percent; disk utilization $3$ percent