You are creating a&#

You are creating a Windows Forms Application by using the .NET Framework 3.5.Your applciation will be used by a government depertment.You need to ensure that the application meets "accessibilty" requirements.Which three actions should you perform？（）

• AExpose keyboard focus visually and programmatically.
• BUse the NeutralResourceLanguageAttribute attribute in the assembly.
• CProvide documented keyboard access to all application features.
• DSet all the colors to primary colors when the high contrast mode is on.
• EDisplay all user interface elements by using the system color scheme when high contrast mode is off.
• FEither display all visual cues or create sound effects for any information.