Which of the following files, when using Sendmail or a similar MTA system, will allow a user to redirect all…?

Which of the following files, when using Sendmail or a similar MTA system, will allow a user to
redirect all their mail to another address and is configurable by the user themselves?

A.
/etc/alias

B.
/etc/mail/forwarders

C.
~/.alias

D.
~/.forward