Tina is using a Korn shell, and she wishes to set her prompt to the output of the host name on the system. Choose the command that Tina will use to change the prompt.
A.
set prompt=`uname -n`$
B.
export PS1=’`uname -n`$ ‘
C.
export PROMPT=`uname -n`$
D.
export PS1=`uname -n`$
E.
prompt ‘`uname -n`$ ‘