Which of the Following Statements About the Theory of Sustainability

Which of the following statements about the theory of sustainability is true?

A) Sustainability is the idea that socially responsible companies will outperform their peers when they focus on the world's problems as marketing opportunities.
B) Sustainability is an internal process in which companies match resources and objectives.
C) Sustainability is successful only if it focuses on organizational strengths.
D) According to the theory of sustainability,a company cannot be socially responsible without a code of ethics and managerial support of that code.