Which of the Following Best Describes the Historical Pattern in the Average

Which of the following best describes the historical pattern in the average number of hours worked per week in the United States when the large drop during the Great Depression is ignored?

A) Average hours decreased from 60 hours per week in 1900 to 40 hours per week in 1960, with average hours holding steady since 1960.
B) Average hours have been consistently between 35 and 40 hours from 1900 through 2010.
C) Average hours increased from 25 hours per week on average in 1900 to over 40 hours per week in 2010.
D) Average hours constantly fell from about 55 hours per week in 1900 to about 33 hours per week in 2010.
E) Average hours held constant at 50 hours per week from 1900 through 1960; since 1960 average hours have consistently fallen to just under 30 hours per week in 2010.