Which of the following is NOT part of the hardware services and software services management function of the operating system?

A) The ability of the computer to enable the data transfer speed between the USB memory stick and and the USB to be adjusted automatically.

B) The ability to restrict the execution of supervisory commands only to authorized or admin users

C) the ability of the computer to raise an alert when a word is wrongly spelt by a user when using a word processor

D) the ability to ensure that appropriate software instructions can be executed within the allowable context