A new switch is being installed and you have been assigned the task of connecting it to an existing switch. In doing this, you want to set up the VLAN Trunking Protocol so that VLAN information can be passed between the switches. Which of the following must you do to accomplish this?（）

• A、You must set each end of the trunk line to IEEE 802.1e encapsulation.
• B、You must set the same VTP management domain name on both switches.
• C、You must set all ports on the two switches as access ports.
• D、You must configure one of the switches as a VTP server.
• E、You must use a rollover cable to connect the two switches.