Scenario 19-3 in the Small Town of Hamilton, Montana, There Is a Is

Scenario 19-3
In the small town of Hamilton, Montana, there is a local hardware store called Eddy's Hardware. There are only two types of workers who apply for jobs at Eddy's Hardware: cowboys and farm boys. Local politicians have received numerous complaints that Eddy's Hardware is practicing wage discrimination against farm boys. Eddy's Hardware denies the complaint and says the store is only trying to maximize profit.
-Refer to Scenario 19-3. Which of the following statements would weaken the discrimination complaint against Eddy's Hardware?

A) Farm boys are more productive than cowboys.
B) Farm boys work longer hours than cowboys and their effort is greater.
C) Farm boys are generally less educated than cowboys in the field of hardware.
D) All of the above would weaken the discrimination complaint.