Rolf is in the business of making crowns, bridges, and dentures that dentists use to repair teeth. It is a highly competitive business, and Rolf has decided that to improve his business he needs to improve the efficiency with which he produces the dental work. Which of the following management approaches would be of most help to Rolf in pursuing this goal?

A. Management science
B. Contingency theory
C. Administrative management
D. The bureaucratic perspective
E. Scientific management