Which type of transportation helped the U. S. expand to the west in the 1800s? A. airplane B. train C. automobile D. ship

Alot of points! ! what was the greatest achievement of el libertador, simón bolívar? a. he became a military strongman in peru. b. he freed venezuelans from spanish rule. c. he bernardo o'higgins liberate chile. d. he united mexicans of all races against spain.