Consider the following code snippet:

Consider the following code snippet:

interface IAnimal { void Speak(); }
abstract class Mammal { public void Breathe() { Console.WriteLine("Breathing"); } public abstract void Speak(); }
class Dog : Mammal, IAnimal { public override void Speak() { Console.WriteLine("Woof"); } }

var dog = new Dog();
dog.Breathe();
dog.Speak();

What will be the output when this code runs?