⟩ You run a super wing-ding diagnostic program on your PC, and it reports that your hard drive, microprocessor, RAM, and video card have seen better days. To resolve this problem you should A. replace each part one at a time, rerunning the diagnostic before replacing the next part. B. check to see if you have a software problem C. replace everything at once and rerun the diagnostic D. get another copy of the diagnostic program E. run an exhaustive memory check