South pass helped pioneers travel over what geographical obstacle? a. The Great Lakes
b. The Grand Canyon
c. The Rocky Mountains
d. The Mississippi River

C) The Rocky Mountains

Explanation:

- "a new era of american politics began with jackson's election in 1828, but it also completed a grand social experiment begun by the american revolution. nevertheless, jacksonian democracy represented a provocative blending of the best and worst qualities of american society."

< 3

the answer is richard nixion