Which two statements are true regarding the creation of a default constructor？ （）  

• A、 The default constructor initializes method variables.
• B、 The compiler always creates a default constructor for every class.
• C、 The default constructor invokes the no-parameter constructor of the superclass.
• D、 The default constructor initializes the instance variables declared in the class.
• E、 When a class has only constructors with parameters， the compiler does not create a default  constructor.