The answer is B, rows.
You cannot scroll through tabs, you always click them. Worksheets just doesn't make sense and collums are vertical. This leaves your only answer as rows.
Explanation:
The computer system is not a simple machine. It is like a very modern and highly complex calc ulator. It can do
Computers are critical for communication and are the centerpiece of information technology. The early 1990s saw the emergence of household Internet use, which eventually spurred common use of email, we bsites, blo gs, social network ing, video c hat and Voice-Over-Inte rnet Protocol.
Look in google for math flowcharts...it will appear easily.
Answer:
I think that it is c and if not pls take the point
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