The radio buttons are used when only one option is to be selected from the several possible choices. Thus, option A is correct.
<h3>What are radio buttons?</h3>
Radio buttons can be understood as the elements of selection a single option amongst the multiple suitable options. The default icon for the radio buttons is the blank circle.
Therefore, option A Radio buttons is correct.
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The fill handle will appear as a small square in the bottom-right corner of the selected cell(s). Click, hold, and drag the fill handle until all of the cells you want to fill are selected. Release the mouse to fill the selected cells
Answer:
Resource Monitor
Performance Monitor
Computer Management and Administrative Tools
Advanced User Accounts Tool
Disk Cleanup
Local Group Policy Editor
There is alot do u want them all?
Answer:
I am not sure can you explain a little more
If the four colors are well -balanced then nothing could be best scheme other than the "Square" as it is it's characteristic
In short, Your Answer would be Option C
Hope this helps!