I really need help on this! The Missouri River played an important role in westward expansion as the jumping off point (a beginning from which an enterprise is launched) for the , which opened up the American west.

A:California Trail
B:Oregon Trail
C:Santa Fe Trail
D:All of the Above

What did alexander hamilton and john adams lead

Answer correct get brainliest and 20 points

Me! why was marbury v. madison such an important case? a. it confirmed that the supreme court was more powerful than congress but less powerful than the president b. it confirmed the authority of the supreme court to review a law in to determine whether or not that law is constitutional. c. it confirmed the authority of congress to increase or decrease the power of the supreme court. d. it gave the supreme court the power to confirm federal judges.