question_stem: Which of the following relationships is true?
choices.text: Play-Doh can scratch diamond, therefore it is softer Diamond can scratch Play-Doh, therefore Play-Doh is harder Diamond can scratch Play-Doh, therefore diamond is harder Play-Doh can scratch diamond, therefore it is harder
choices.label: A B C D
fact1: if one mineral can scratch another mineral then that other mineral is softer than that one mineral