Answer:
(D). Many single, middle-class women worked outside the home.
Explanation:
The Wagner act is also known as the National Labor Standards act
Answer:B and C
Explanation: A: Slavery was abolished after the Civil War. D is untrue.
The expansion of the railroads in the late 1800s was instrumental in helping the US economy boom. It did this in two ways. First, the railroads created a tremendous amount of demand for goods and labor on their own. As the railroads were being built, they needed huge numbers of people to build them.
Explanation: