Which three of these pre-requisite for resetting a Catalyst Express 500 switch when Cisco Network Assistant is unavailable？（）

• A、At Least one enabled switch port that is unconnected to any device
• B、A PC pre-configured with a specific IP Address and Mask
• C、A PC or laptop with Windows 2000 or Windows XP installed and a web browser that has Java Script enabled
• D、Physical Access to Switch
• E、A Switch with no connected devices