Which of these was a challenge formany people who traveled to the West? Select one:
. a. Great Plains
b. Missouri River
c. Pacific Ocean
d. Rocky Mountains

D. Rocky Mountains

Explanation:

After entering the mountains, the trail became much more difficult, with steep ascents and descents over rocky terrain. The pioneers risked injury from overturned and runaway wagons.

the answer is title i subtitle b

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south