Which one of the following statements best describes the reason DuPont developed return on investment (ROI) into an important management technique?
a. A bankruptcy court trustee required DuPont to improve its management practices.
b. Antitrust legislation passed at the turn of the twentieth century required all corporations to adopt ROI.
c. DuPont was concerned about competition from low-cost foreign imports.
d. DuPont needed a technique for comparing the operating performance of its different business divisions.
e. DuPont needed a technique for evaluating the performance of its stock market investment portfolio.