Why Might Theorist Pierre Bourdieu Have Decided to Examine His

Why might theorist Pierre Bourdieu have decided to examine his theory of social mobility-the interrelationships between culture,class,and power-in the French school system as opposed,say,to the workplace of adults?

A) Schools afforded him the opportunity to study how children entered the workplace.
B) Schools offered the chance to look across multiple generations.
C) Schools afforded a quieter,more stable environment.
D) Workplaces also had a great many non-French persons.