How to create generic property in model class using asp.net core

Question

public class A
{
   public int Val {get; set;}
   public int B {get; set;}
   public T C{get; set;} // make generic property
}

How can I create generic property in model class using asp.net core. In above code I want to make

"C" property as a generic property and convert that property into particular class.

In "C" will be dynamic property.

Example

public Class D
{
  public int Value1 {get; set;}
}

public Class E
{
  public int Value2 {get; set;}
}

The "C" property have either D or E

Answer 1

public class A<T>
{
   public int A {get; set;}
   public int B {get; set;}
   public T C {get; set;} 
}

And use it like this：

var a = new A<D>()

OR

var a = new A<E>()