The Hegira or Hijrah<span> (Arabic: هِجْرَة), also romanized as Hijra and Hejira, is the migration or journey of the Islamic prophet Muhammad and his followers from Mecca to Yathrib, later renamed by him to Medina, in 622 CE.</span>
They became more of a fashionable item. most likely got more expensive so you'd only see the rich wearing shoes and it would show the social classes more easily so it might have made some people feel bad about themselfs. before they were only used to keep your feet from being burned from a hot ground or from getting frost bite in winter.
I am pretty sure the answer that oyu are looking for is D. I hope I am right and that this helps. Good Luck
1. Food
2. Clothes
3. Warmth for there houses.
The horse changed there lives because it was easier for them now to capture buffaloe more often and efficiently