Select the correct answerWhat is true about protected constructor?OptionsProtected constructor can be used outside packageProtected constructor can only be called using super()Protected constructor can be called directlyprotected constructor can be instantiated even if child is in a different package

The correct answer is "Protected constructor can only be called using super()".

Here's why:

1. "Protected constructor can be used outside package" - This is incorrect. Protected constructors can only be accessed within the same package or through a subclass, not outside the package.

2. "Protected constructor can only be called using super()" - This is correct. In Java, if a superclass has a protected constructor, it can only be called from a subclass using the super() keyword.

3. "Protected constructor can be called directly" - This is incorrect. Protected constructors cannot be called directly outside the class or package. They can only be called within the same class, same package, or in a subclass using the super() keyword.

4. "Protected constructor can be instantiated even if child is in a different package" - This is incorrect. A protected constructor can only be accessed in a subclass, even if the subclass is in a different package, but it cannot be instantiated directly. It can only be accessed through the super() keyword in the subclass.