When a user-defined enumeration is instantiated what type is created by the NET Framework to represent it?

When a user-defined enumeration is instantiated in the .NET Framework, it is represented as a distinct type derived from the System.Enum class. This new enumeration type is based on an underlying integral type, typically int by default, but it can also be specified as byte, sbyte, short, ushort, long, or ulong. The enumeration values are essentially named constants of this underlying integral type, allowing for type-safe representation of a set of named values.