Multiple Select Question

Select all that apply

A goal of the Sarbanes$-$Oxley Act is improving corporations' internal controls. Which of these may accomplish this goal? $($Select all that apply.$)$

Marketing managers must determine whether the marketing team is submitting accurate sales and expense reports.

External auditors prepare a corporation's financial statements and audit them as well.

External auditors must test the effectiveness of the company's internal controls.

An audit committee of independent directors oversees financial matters of the company.