Question: Which statement is true? Group of answer choices Sentinel values are used to control iteration when the precise number of iterations is known in advance.

Which statement is true?
Group of answer choices
Sentinel values are used to control iteration when the precise number of iterations is known in advance.
In a counter-controlled loop the counter must count upward.
Sentinels must be distinct from regular data items.
Sentinel-controlled iteration is often called definite iteration.

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