You have an Exchange organization. All servers in the organization have Exchange Server 2010 SP1 installed.

You need to ensure that each user who sends a meeting request to a room mailbox receives a custom message from the mailbox.

What should you do from the properties of the mailbox?

A.
Configure the Mailbox Features settings.

B.
Configure the Mail Flow settings.

C.
Enable the Resource Booking Attendant.

D.
Configure the Resource Information settings.

E.
Configure the Resource In-Policy Requests settings.

F.
Configure the Resource Out-of-policy Requests settings.

G.
Configure the Account settings.

H.
Configure the Resource Policy settings.