Solution

The correct answer is (A), (B) and (C) Only 

EXPLANATION:

• (A) Constructors are invoked automatically when the objects are created - Correct.
  • In object-oriented programming, a constructor is a special method that is automatically called when an object is created. Its purpose is to initialize the new object's attributes.
• (B) Constructors do not have return types, not even void and therefore they cannot return values - Correct.
  • Constructors are primarily used to initialize object attributes. They do not return values, and specifying a return type for them can lead to compiler errors.
• (C) Constructors cannot be inherited though a derived class can call the base class constructors - Correct.

  • An object of a subclass type will automatically call its superclass's constructor as part of its creation process, but the constructor itself isn't an inheritable part of the superclass.

• (D) Constructors can be declared as virtual - Incorrect.
  • Virtuality applies to functions that you want to be executed polymorphically, where the specific implementation depends on the actual run-time type of the object.
  • Constructors don't work this way: when you create an object of a derived class, it's the derived constructor that you want to run.
  • The base class constructor is called automatically already, before the derived class constructor, so there is no need for virtuality.