Which of the following statements is true regarding the marketing concept?
a. The marketing concept is a second definition of marketing.
b. Implementing the marketing concept should only benefit customers.
c. In order to satisfy customer desires, society's long-term welfare must be sacrificed.
d. The marketing concept is a managerial philosophy guiding all aspects of an organization's business.
Answer: d. The marketing concept is a managerial philosophy guiding all aspects of an organization's business.