You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application. You write the following code fragment. You need to implement the MyProject.MyConverter class. What should you do?（）

• A、 Implement the IValueConverter interface.
• B、 Implement the IMultiValueConverter interface.
• C、 Inherit from the TypeConverter class.
• D、 Apply the TypeConverterAttribute attribute.