Which choice is the correct declaration for the class named Dog, derived from the Animal class?

class Animal{
//….
}

• A
  class Dog :: public Animal {
  //….
  };
• B
  class Dog : public Animal {
  //….
  };
• C
  public class Animal :: Dog {
  //….
  };
• D
  public class Dog extends Animal {
  //….
  };