Question

Which of these contributed to prosperity for the middle class during the two decades following World War II?

Answer 1

G.I. Bill

McCarran Act

Smoot-Hawley Tariff

North American Free Trade Agreement

Answer 2

I believe the answer is the G.I. Bill, since the McCarran Act was about security, the Smooth-Hawlet Tariff went into affect way before World War II started, and the North American Free Trade Agreement didn't have too big of an effect on the American middle class. Also, the G.I. Bill provided a lot of benefits for veterans of World War II.