If not for Sacagawea, they most likely would have gotten lost or injured and not have been able to complete their goal.
The biggest alter to the American homefront was that women actually started working and helping with war. Before WWII women just stayed at the house and took care of their kids. It's the biggest effect now because women still work today, and they still can get into the Military today. A little side effect from it is that there were major blackouts in cities, due to the war.
Mercenaries were groups of people that pretty much had no loyalty to a single nation. The fought along with nations that paid them (roman empire in this case).
The answer "B. Legalism" would be the best way to go. Hope it helped.
Answer:
Help with economic needs and legitimize the struggle for independence
Explanation:
