A company is being audited by its operating system vendor. The company needs to report the number of operating systems in use, the versions of the operating systems, and the product keys. Which of the following will be MOST helpful in passing the audit?
A) Implementing software asset management (SAM) tools to track and manage operating system licenses, versions, and product keys.
B) Performing a manual inventory of all computer systems and recording the operating system details.
C) Relying on user self-reporting to provide information about the operating systems and product keys.
D) Reviewing purchase invoices and receipts to determine the number of operating systems and versions in use.