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

a standing committee

explanation:

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".