✓ Correct answer: C. 5 WhysThe activity '5 Whys' is typically used during the 'Generate insights' stage of an Agile retrospective. It helps teams dig deeper into root causes of issues faced during the iteration. 'Check-in' is usually done at the start to set the stage; 'Fishbone analysis' and 'Brainstorming' are also insight-generating tools used in this phase.
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