Halfway through the execution of an agile project, a retrospective meeting is held.

The correct answer is D — The team should reevaluate time and cost estimates to reflect the latest understanding of the work effort.

Agile supports progressive elaboration and adaptive planning. When actual effort consistently exceeds estimates, it signals a need to recalibrate estimation practices. The team should revisit their velocity, estimation techniques, and potentially re-estimate upcoming work with improved understanding.

PMI Agile Practice Guide:

“Agile uses adaptive planning, where teams update estimates based on new information. This supports better forecasting and risk management.”

(PMI Agile Practice Guide, Section 5.3 – Estimation and Velocity)

Mike Griffiths:

“Estimation accuracy improves over time. Agile teams regularly inspect estimation practices and adjust based on historical data and team maturity.”

(PMI-ACP Exam Prep, Chapter 5 – Adaptive Planning)

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