Did americans work less than 40 hours a week on average in 1980? in 1980

Americans definitely worked less than 40 hous a week in 1980.

Explanation:

A study shows that in 1980  an avarage worker clocked in 38.1 hours per week, it might appear that there is not much difference in comparison to the average of hours workers spend  at work nowadays; in many contries workers have to work 48 hours per week which represents a diference in almost 10 hours, but americans are considered workaholic and they work up to 60 hours a week.

can you post options?

i believe the answer is c