Which of the following is not a step that must occur with every correctly working loop?

a) initialize a loop control variable before the loop starts.
b) set the loop control value equal to a sentinel during each iteration.
c) compare the loop control value to a sentinel during each iteration.
d) alter the loop control variable during each iteration.

(B) Set the loop control value equal to a sentinel during each iteration.

Explanation:

 The loop basically allow the many times of instructions that are executed until the given condition or statement declared as false. In the looping process, the given set of the instruction are basically executed and operate on the multiple and the individual set of the information or data.

The option (B) is correct as it is not the step of correcting the loop as it is not included in the loop structure format process.

On the other hand, all the other given options are the properties of the lopping structure process in the system.

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