Question: When does a while loop invariant need to hold (i.e be true)? (a) O When a program enters the loop. (b) O When a

When does a while loop invariant need to hold (i.e be true)?

When does a while loop invariant need to hold (i.e be true)? (a) O When a program enters the loop. (b) O When a program enters and exits the loop. (c) In the post-condition of the method (d) O At the start and end of every iteration of the loop. (e) O At every moment in the loop.

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