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Computer Science for IGCSE & O level - Algorithm Design And Problem Solving (Section 9 - No. 50)

What is the key characteristic of the algorithm represented in the alarm clock example that relates to control flow?
It uses a FOR loop.
It includes an IF statement to check the time.
It waits for a certain time to elapse and triggers a sound.
It implements a WHILE loop to check continuously.

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The WHILE loop is used to repeatedly check the time until the alarm time is reached.

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