IDK for sure but it could be Xylophone?
Inference is evidence. So you would have to show evidence from the text or what ever you are studying.
Hope this helps!
i’m not sure i know the answer but i found this quizlet link that might help you out https://quizlet.com/16537111/radiographic-density-flash-cards/
Aren't all musicians able to? They should be able to.