Barriers to trade in ancient Egypt (what made it hard to trade)
I need 3 answers pls help!

How did the mountains on the oregon trail influence the timing of pioneers’ travels? a.) the pioneers wanted to avoid times when there was snow in the mountains. the pioneers wanted to spend as much time as possible enjoying the mountain scenery. b.) the pioneers crossed the mountains in late fall when the trees were bare and the views were good. c.) the pioneers were rugged people who were not impacted by the terrain they crossed at any time.

What do turbans indicate about the wearer? a. the wearer’s social status the wearer’s social statusb. the wearer’s birthplacethe wearer’s birthplacec. the wearer’s marital statusthe wearer’s marital statusd. the wearer’s religious sect the wearer’s religious sect

What is the most likely result of specialization in producing products a and b? a) japan stops producing and using product b. b) the u. s. stops producing and using product a. c) the increased output means the u. s. and japan can trade excess units of products a and b. d) specialization means the u. s. will trade 800,000 units of product b for 60,000 units of product a.