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單項選擇題

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.

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