The Keating-Owen Child Labor Act

A) made it illegal to hire anyone under the age of eighteen.
B) cut work hours for those under eighteen to twenty hours per week.
C) prevented the employment of children under the age of sixteen.
D) was vetoed by President Wilson.
E) stated that children could only work during the months that school was not in session.

C) prevented the employment of children under the age of sixteen.

Explanation:

The Keating-Owen Child Labor Act  was a short-lived statute that sought to address child labor by prohibiting the sale in interstate commerce of goods produced by factories that employed children under fourteen, with mines that employed children younger than sixteen

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d. it adversely affected american productivity