The best option regarding the power held by the federal government after the Civil War would be "<span>(b) the federal government with increasingly play a role in American life going forward," since it was clear that states with too much power brought trouble to the Union. </span>
Answer:
The wealth of the states came from controlling the trade routes across the desert. Their power came from having large pack animals like camels and horses that were fast enough to keep a large empire under central control and were also useful in battle.
Explanation:
wiki
B is your answer to the first one
A is the answer to the second one