Answer:
C because it will work. I tried that a lot of time with documents.
Explanation:
<span>The Answer is C. Right-click row 21's row number, and then click Insert.
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Automatic, three speed transmission
For bad software, probably a virus/malware/ransomware kind of thing. If it is good software, probably a program that organizes your files, adjusts certain things, but do not record your files (no programs are at the top of my head, sorry).