I would go C because that way it gets her prepared to answer any techie questions they would have for her and would make her a better option.
Where are the options and the dialog
Answer:
No, It will not. but sometimes when you do the overclock the monitor may not have fast enough pixel response time. you might notice some tearing in the image. but will not do any permit damage
Explanation:
my display is overclocked from 60hz to 75hz (the max)
