Animal a $=$ new Mammal$("$Elephant$")$; compiles with no errors. Which of the following situations will permit that? Mammal is a class with a constructor that takes one parameter of the String type, and Animal is its subclass. Animal is a class with a constructor that takes one parameter of the String type, and Mammal is its subclass that has no constructors defined. Mammal is a class with a constructor that takes one parameter of the String type, and Animal is a superclass of Mammal. Animal has a public static data field String Mammal. None of the above