Which of the following cartilages do not touch any other bone or cartilage in the human body?

This is too full of medical jargon for a general-knowledge quiz.

Player #33161631, I disagree, I'm not in the medical world and it's not gibberish to me.

WalksBySelf, agree, it is gibberish to everyone else not in the medical world and no doubt many in that world will roll their eyes at a pasted answer the question setter doesn't understand themselves.