Which of the following commands is equivalent to kill 1234?

Which of the following commands is equivalent to kill 1234?

A.
kill -1 1234 or kill -s SIGHUP 1234

B.
kill -2 1234 or kill -s SIGINT 1234

C.
kill -3 1234 or kill -s SIGQUIT 1234

D.
kill -9 1234 or kill -s SIGKILL 1234

E.
kill -15 1234 or kill -s SIGTERM 1234

Explanation/Reference:
If no signal is specified kill uses SIGTERM (15) as its default signal to processes.