Final answer:
Peter Drucker would most likely agree with the slogan 'Efficiency is doing things right; effectiveness is doing the right things.' This aligns with his teachings that stress the significance of effectiveness in business, which involves making the right strategic decisions and creating value for all stakeholders.
Step-by-step explanation:
The teachings of Peter Drucker have been profoundly influential in the management world, emphasizing the importance of various aspects of business operation. Considering the options provided and the insights from Drucker's work, B. 'Efficiency is doing things right; effectiveness is doing the right things.' would be the slogan he most likely agrees with. Drucker's perspective prioritized the notion of effectiveness in management, stressing that businesses should focus on the right strategic choice rather than just efficiency in operations.
It's essential to highlight that innovation, customer satisfaction, and cost management are pivotal to a business's success. However, as stated by Drucker, the ultimate measure of business effectiveness isn't profit itself, but rather whether the business is doing the right things to achieve its goals. This philosophy underpins Drucker's belief that businesses should create value for customers, employees, and society at large through productive and effective practices.