You have a DHCP server that runs Windows Server 2008 R2.You need to reduce the size of the DHCP database.What should you do？（）

• A、From the DHCP snap-in, reconcile the database.
• B、From the folder that contains the DHCP database, run jetpack.exe dhcp.mdb temp.mdb.
• C、From the properties of the dhcp.mdb file, enable the File is ready for archiving attribute.
• D、From the properties of the dhcp.mdb file, enable the Compress contents to save disk space attribute.