(PLS HELP I GOTTA GET THIS DONE!) How Did the lewis and clark expedition benefit the united states? A. They created maps that led the way for other explorers and traders to follow.
B. They charted an easy water route from st. louis to the pacific.
C. They established trading relationships with french and spanish fur trappers
D. They mapped areas open to settlement where no native american lived.

(100 points) project: progressive era research your topic and write at least seven hundred words to discuss one of the following topics. a. evaluate the impact of progressive era reforms. b. evaluate the impact of progressive reform leaders such as susan b. anthony or robert lafollette. c. evaluate the impact of third parties and their candidates such as h. ross perot and george wallace on america. note: as with any research you do, evaluate the validity of your source: a. who is the author? b. is the author an authority on the subject? c. how does the author use language? d. what sources appear in the author's work? e. from what you know or have learned about the author, is the presentation inappropriately biased?