In Comparing the Median Income of American Families in 1996

In comparing the median income of American families in 1996 with that of 1973, what result is found?

A) Such incomes were much higher in 1973.
B) Such incomes were only barely higher in 1996 than in 1973.
C) Because of high technology, these incomes were much higher in 1996 than in 1973.
D) Median family incomes had actually dropped below 1973 levels by 1996.