In the Second Half of the 20ᵗʰ Century the U

In the second half of the 20ᵗʰ century the U.S. economy:

A) continually expanded manufacturing
B) increased and then decreased the proportion of middle-class jobs
C) expanded the financial services sector
D) exported manufacturing jobs to countries with lower wages
E) benefited from the position of the U.S. dollar as a global reserve currency
F) b, c, d, and e
G) all of the above