❔ Call base method in multiple inheritance

public class A
{
  public virtual void Foo()
  {
    Console.Write("Hello ");
  }
}

public class B : A
{
  public override void Foo()
  {
    Console.Write("World");
    base.Foo();
  }
}

public class C : B
{
  public override void Foo()
  {
    Console.Write("!");
    base.Foo();
  }
}