What did the Union Pacific and Central Pacific railroad companies do?
O A. They built a railroad between Texas and Mexico City.
B. They built a railroad along the Pacific Coast.
C. They connected the East and the West with a rail line.
O D. They connected the northwestern United States with Canada.

Which of the following is the correct order of key events in the sioux conflicts? (1) red cloud’s war (2) treaty of fort laramie (3) black hills gold rush (4) battle of little bighorn (1) treaty of fort laramie (2) battle of little bighorn (3) red cloud’s war (4) black hills gold rush (1) black hills gold rush (2) red cloud’s war (3) battle of little bighorn (4) treaty of fort laramie (1) battle of little bighorn (2) treaty of fort laramie (3) black hills gold rush (4) red cloud’s war