D) They dominated both houses of Congress.
How did Christopher Columbus shape the American West?
A) The first explorers of the trans-Mississippi West came from his crew.
B) He named most of the territory west of the Mississippi.
C) He brought cattle to the Americas, which later spread wild across the Western
prairie.
D) The gold he brought back to Spain had originated in California, which began a
centuries-long quest for the Pacific Coast.
Why were many in the middle class attracted to progressive reforms?
A) They sought to join conservative business forces in their triumph over working-class
socialism.
B) They feared that their sense of personal importance and ambitions were undermined
by aggressive labor unions.
C) They could make a pragmatic alliance with the “new” urban immigrants who were
the backbone of new militant labor unions.
D) They approved of the intellectual currents behind progressivism.