Real Income Growth for Families from the 1950s Through the 1970s

Real income growth for families from the 1950s through the 1970s is a reflection of what?

A) A period of sustained and unprecedented expansion in Canada's economy
B) A period of unsustained and unprecedented expansion in Canada's economy
C) Stagnation of the workforce despite increasing numbers of women in the workforce
D) Decreasing productivity
E) What a household can purchase at the store