1. Passage of the Homestead Act in 1862 encouraged settlement of the Great Plains by
A. providing free land to farmers
B. removing barriers to Asian immigration
C. supplying land to build transcontinental railroad
D. placing Native American Indians on reservations

D. placing Native American Indians on reservations

Explanation:

The 1862 Homestead Act accelerated settlement of U.S. western territory by allowing any American, including freed slaves, to put in a claim for up to 160 free acres of federal land.

A providing free lands to all farmers.

Explanation:

Unless you are talking about the Great Plains Indians, but that has to do with the Dawes Act.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.