What command will terminate the process?

You have been asked to terminate a process that appears to be hung and will not terminate.
The process table is shown below: root 15163 15156 0 12:51:15 pts/3 0:00 hungscript What
command will terminate the process?

A.
kill -2 15163

B.
kill -15 15163

C.
kill -9 15163

D.
kill -1 15163