Write a method called fillGaps that accepts a PriorityQueue of integers as a parameter and adds elements to it until every element in its range of smallest to largest is represented once if it was not previously found in the priority queue.

The answer is d parking brake

Answeroperating system

Same issue happened to me i had 4/5 and suddenly they went down to 3/5 .the reason must be that the question u recived a brainliest answer mark, was deleted by a moderator. they can delete a question for some reason if it isn't complete or has been reported. so there for that is most likely the reason.best of hope u earn another one