Which of the following statements best describes the audit committee? a. The audit committee is a group of executive directors charged with the oversight of internal auditors. O b. The audit committee is a group of non-executive directors charged with the oversight of both internal as well as external auditors. O c. The audit committee is a group of non-executive directors charged with the oversight of internal auditors. O d. The audit committee is a group of executive directors charged with the oversight of both internal as well as external auditors