An operating system is the set of instructions a computer uses to perform a specific task

When is the base case first > last (where first is the index of the first item in the array and last is the index of the last item in the array) reached in a recursive binary search algorithm?

What will be an ideal response?

Which statement is true when a superclass has protected instance variables?

a. A subclass object can assign an invalid value to the superclass’s instance variables, thus leaving an object in an inconsistent state. b. Subclass methods are more likely to be written so that they depend on the superclass’s data implementation. c. We may need to modify all the subclasses of the superclass if the superclass implementation changes. d. All of the above.