Overload resolution and virtual methods

Question

Consider the following code (it\'s a little long, but hopefully you can follow):

class A
{
}

class B : A
{
}

class C
{
    public virtual void Foo(B b)
            


        

Answer 1

I think that when implementing another class it looks as far up the tree to get an solid implementation of a method. As there is no method being called it is using the base class.

public void Foo(A a){
    Console.WriteLine("Foo(A)" + a.GetType().Name);
    Console.WriteLine("Foo(A)" +a.GetType().BaseType );
}

thats a guess i am no pro at .Net