I think the answer is a. but I could be wrong.
Explanation:
to cross the Continental Divide
In the mid-1830s Narcissa Whitman and Eliza Spalding became the first white women to cross the Continental Divide when they accompanied their husbands—Marcus Whitman and Henry Harmon Spalding—on a Congregationalist mission in the Northwest.
The answer is D I believe
C
Explanation
Peaceful unions" had the right to negotiate labor contracts with employers.
As tensions rose between the Republican and Democratic parties, many believed a second Civil War was coming if Reconstruction did not end.
