Uncover abuses in government
Probably the most important change that happened at the time was that C - Women worked jobs that had ben held almost exclusively by men.
Due to the fact that the majority of men, or at least a good portion of them, were on the battlefield in Europe, women had to take over the role in certain key areas that were necessary for the victory of the US.
D is the answer I hope this helps
The Treaty of Guadalupe Hidalgo, which brought an official end to the Mexican-American War<span> (1846–48), was signed on February 2, 1848, at Guadalupe Hidalgo, a town near Mexico City. The U.S. paid Mexico $15 million and absorbed another $3 million in debts, and acquired New Mexico, Arizona and California.</span>
