The Sarbanes-Oxley law did all of the following except a. require all publicly-traded companies to hire independent property managers to value their assets. b.place responsibility on the CEO and CFO to develop and maintain internal controls to increase the likelihood that financial information is accurate. c.require members of the audit committee of the board of directors to all be external, independent directors. d. requires board approval for a firm that does the audit to provide certain other non-audit functions for the company