What is the default location of smith’s mail spool on the machine?

You have created the user smith on your Linux machine. What is the default location of smith’s
mail spool on the machine?

A.
~smith/mbox.

B.
/var/mail/spool/smith.

C.
/var/spool/smith/mail.

D.
/var/mail/smith/spool.

E.
/var/spool/mail/smith.