What factors contributed to the end of child labor in the United States?

Child labor has existed for much of U.S. history, though most has Immigration to the United States led to a new source of labor and Changing attitudes toward work and social reform weren't the only factors reducing child labor; of education means many are working longer hours to make ends meet.

Explanation:

you have to study

the answer is b.

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the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.