COGNITIVE ASSESSMENT
Which of the following is true about cleaning and fixing scratches on an optical disc?
A. Hold the can of compressed air upright while blowing excess dust off of the surface.
B. You should wipe debris off the disc's surface from the edge toward the center.
C. It is OK to insert a wet disc in a computer.
D. Use a gel toothpaste on a scratched area if you do not have a rubbing compound.
Answer: A
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