Multiple choice technology operating systems

I know linux can multitask -- how do I switch between programs?

  1. fg,bg, &

  2. switch

  3. fg,bg

  4. None
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A Correct answer
Explanation

Linux uses job control for multitasking: fg brings a background job to foreground, bg resumes a stopped job in background, and & after a command runs it in background initially. Option C is incomplete (missing &), and 'switch' is not a valid Linux command.

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