what command must you type after exiting the unfamiliar editor?

You are attempting to edit your crontab file in the bash shell. Instead of getting your usual vi
interface, you are presented with an unfamiliar interface. In order to have your editor of
choice-viwhat command must you type after exiting the unfamiliar editor?

A.
EDITOR=vi

B.
crontab=vi

C.
crontab – e vi

D.
env