An administrator needs to update the anti-virus， security patches， BIOS， and the web server software on a production system.  Which of the following is the BEST method to accomplish this？（）

• A、 Update anti-virus， security patches， BIOS software， and then the web software.
• B、 Update the web software， security patches， anti-virus， and then the BIOS.
• C、 Update security patches， BIOS， web software， and then the anti-virus.
• D、 The order does not matter， only one change at a time should be done.