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Which of the following task swapping method is a better choice in the embedded systems design?

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Which of the following task swapping method is a better choice in the embedded systems design?

(a) RMS

(b) pre-emptive

(c) cooperative multitasking

(d) time slice

This question was posed to me during an interview.

My question is from Task Swapping Methods topic in chapter Real Time Operating systems of Embedded Systems

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The correct answer is (b) pre-emptive

The best explanation: The pre-emptive method of task swapping is the first choice for embedded system design because of its better system response.

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