B. Horses, because they Indians found out they no longer had to travel by foot!!
Some push factors were the chance to get rich, Dry farming, owning land, escaping the nightmares of the south ( slaves ). There were also longhorns to sell. Some pull factors were relatives and spouses not wanting them to go.
Francis Wilkinson Pickens was a political Democrat and Governor of South Carolina when that state became the first to secede from the U.S.A.
Cited from (Wiki)
<span>They established civilian control of the military</span>