If your choices are the following:
A. Teenagers have not yet developed skills that make them valuable employees in the workforce.
B. Fast food restaurants are able to employ people who otherwise might not be able to find a job because of the low skill level required to perform the tasks.
C. The McDonald brothers designed the Speedee Service System based on the assembly line systems of American factories in the early twentieth century.
D. By law, fast food restaurants must offer equal employment opportunities to those seeking work.
Then the answer is D.
