Help pls! this is ap world history work btw! (i have the sand roads. i have more work too but for right now this would be rlly helpful!)

•how/why did your trade route emerge? what was the driving force?

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii