Choice "D" is correct. The issues surrounding risk and growth are significant to investors and generally addressed by enterprise risk management concepts; however, the Sarbanes-Oxley Act focuses less on strategic operations and more on the financial reporting issues impacted by the audit committee's competence, the ethical behavior of senior officers and the adequacy of internal controls.
Choices "c", "a", and "b" are incorrect. The Sarbanes-Oxley Act focuses on the financial reporting issues impacted by the audit committee's competence, the ethical behavior of the financial officers and the adequacy of internal controls as a means of improving investor confidence. Competency of audit committees, compliance of senior officers with a code of ethics, and adequacy of internal controls are all issues addressed by Sarbanes Oxley.