Answer:
The Iran-Contra Affair was a secret U.S. arms deal that traded missiles and other arms to free ... to bring down the presidency of Ronald Reagan. ... During his campaign for the White House, Reagan had promised to assist ...
Explanation:
The group that constituted the backbone of the American labor force throughout the nineteenth century is Common laborers.
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Who are the American labor force?</h3>
American labor force are the group of workers in the united state that usually fight for the right of the workers from the government or with their respective employers.
However, in the nineteenth century , most of those that stand and protested for the right of the workers are the common laborer as well as the factory workers.
Learn more about American labor force at:brainly.com/question/13280244
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It would be A because Germany was making an atomic bomb as well and we wanted to finish and launch before they did.
