Answer:
B) social responsibility differences between similar firms, but in different countries
Step-by-step explanation:
Remember, JD was amazed to see the difference in working conditions in the developing nations where he visited, compared to similar operations in the U.S.
Thus, it shows the reality of the differences in how firms are socially responsible across countries. His experience therefore reaffirms the need for developing countries to improve working conditions by been socially responsible.