Which statement correctly describes when an inoperative MEL item may be tolerated for flight?

Which statement correctly describes when an inoperative MEL item may be tolerated for flight?

• A. When the item is categorized as essential and all limitations are exceeded.
• B. When the item is not essential but the aircraft is not certified to fly with it inoperative.
• C. When the item is cosmetic.
• D. When the item is categorized as nonessential and the aircraft is certified to fly with it inoperative and all necessary limits are met.

Answer: (D)