Because in the time before the 19th amendment many people thought that woman were incapable so they shouldn't have the write to choose the nations leaders.
The Answer To Your Question is B. Alignment.
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There are several ways in which the U.S. increased western settlement in the 1800's, but by far the most important action was the creation of the Homestead Act.
Answer:
1) New and revolucionary tactics and weapons (european powers use the inspirations in WWI)
2) Number of fallen remains far higher than in any other american war before or after
3) That is was war to prevent seccesion of Southern states and breaking of USA
