While running a program to compute the Biggest Prime Known To Men you discover that your system is getting a bit unresponsive. Running ‘top’ gives you the following information:

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
9519 test 15 0 236 236 192 R 98.4 83.5 1228:55 primefind

Since the program has allready been running a long time and you’re sure it will spit out the answer soon, you don’t want to kill it. What other option do you have ? (choose the best answer)

A.
nice +10 -p 9519

B.
nice -10 -p 9519

C.
renice +10 -p 9519

D.
renice -10 -p 9519