Which of the Following Statements Concerning Financial Reporting Is Correct

Which of the following statements concerning financial reporting is correct?

A) The FASB requires all financial decision makers to adhere to a code of professional conduct.
B) The Sarbanes-Oxley Act does not require businesses to maintain an audited system of internal control.
C) A fundamental characteristic of useful financial information is that it fully depicts the economic substance of business activities.
D) There is no attempt to eliminate the difference in accounting rules in the U.S.and elsewhere as this would prevent investors from comparing financial statements of companies from different countries.