which sendmail configuration database can this requirement be defined?

You want sendmail to deliver mail for these users:
[email protected] mailbox jsmith1
[email protected] mailbox jsmith2
[email protected] mailbox jsmith3
In which sendmail configuration database can this requirement be defined?

A.
/etc/aliases

B.
/etc/mail/userdb

C.
/etc/mail/virtusertable

D.
/etc/mail/domaintable

E.
/etc/mail/genericstable

Explanation:
/etc/mail/virtusertable
This database file maps mail addresses for virtual domains and users to real mailboxes. These

mailboxes can be local, remote, aliases defined in /etc/mail/aliases, or files. This allows multiple
virtual domains to be hosted on one machine.
The following example demonstrates how to create custom entries using that format:
[email protected] root
[email protected] [email protected]
@example.com joe