Your company has a main office and one branch office. Your network consists of an Active Directory domain. You have a remote access server in the main office named Server1. You have a remote access server in the branch office named Server2. Server2 has a demand-dial interface that connects to Server1. The demand-dial interface connects by using a domain account named Ras1. You need to prevent Server2 from establishing new demand-dial connections to the main office between 18:00 and 08:00.  What should you do?（）

• A、Modify the dial-in properties of the Ras1 account.
• B、Modify the dial-out hours on the demand-dial interface.
• C、Modify the IP demand-dial filters on the demand-dial interface.
• D、Enable Bandwidth Allocation Protocol （BAP） on Server2.