D- could not be, this did not happen until 1979.
among the three remaining ones I think that the best option is <span>c. Women's entrance into the workforce during World War I- this gave the women the power of persuasion</span>
The main reason why the United States largely shied away from imperialism prior to 1890 was because it was still a relatively "fragile" nation with a host of its own issues to work out--such as the slavery issue that eventually led to the devastating Civil War.
<span>to aid Panamanian rebellion against Colombia</span>
Many new machines like the cotton engine. It improved men's clothing and provided new weapons. (Industrial Revolution)
They often aligned themselves with other developing nations to create a bloc. They have the power of one super power nation, but they are still able to speak their countries opinions. Either wise, they would be completed over powered.
