When a derived function over$-$rides a base$-$class function, which of the following statements are true?

I.The derived class is obligated to invoke the base$-$class function first, followed by any new code

II$.$Over$-$riding the base$-$class function makes it impossible to call the base$-$class function again

III.The base$-$class function must be made to have different parameters from the derived function$$

Question $4$ options:

I

II

III

None are true