The reason U.S.workers were better paid than foreign workers during the 1950s and 1960s is

A) U.S.workers were better trained and educated.
B) U.S.workers worked harder.
C) we had more capital (plant and equipment) per worker.
D) the U.S.dollar was the world's strongest currency.

The U.S. had more capital (plant and equipment) per worker during the 1950s and 1960s, which allowed for higher productivity and wages. This was known as the "capital deepening" effect, which means that as a country adds more capital per worker, the productivity of each worker increases, leading to higher wages. U.S. workers were not necessarily better trained or educated than foreign workers, and it cannot be assumed that they worked harder. While the U.S. dollar was strong during this time period, it was not a direct reason for higher wages.