单选题：When the kill command is given with only the PID number of the p

When the kill command is given with only the PID number of the process to kill (as in 'kill 1234'), this corresponds to which type of kill signal? @[D](1)
A. 2 (SIGINT)
B. 1 (SIGHUP)
C. 9 (SIGKILL)
D. 15 (SIGTERM)





A.2 (SIGINT)
B.1 (SIGHUP)
C.9 (SIGKILL)
D.15 (SIGTERM)


答案：D