单项选择题

A. the previous refresh rate and the new refresh rate a……

The BEST information to document when changing the refresh rate on the display is to include: （）

A. the previous refresh rate and the new refresh rate applied.
B. the method that was used to access the display properties to change the refresh rate.
C. all the refresh rates that were tested.
D. the color resolution the user requested as well as the refresh rate.

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