After completing an AI project, the project manager begins preparing the final report and reflecting...

The best answer is D. The AI project team would have required less external consultation . PMI’s CPMAI exam content outline explicitly includes identifying project resources, assessing skill requirements for AI project team composition , and identifying gaps in needed capabilities. That means PMI expects project managers to recognize when internal AI and data expertise is insufficient and when outside specialists, contractors, or other support may be needed to fill those gaps. If the team already had adequate AI and data knowledge, the most direct difference would be reduced dependence on external experts or consultants.

The other options are weaker because they are less certain. Better knowledge can help governance, schedule, and even model performance, but those outcomes also depend on many other factors such as data quality, stakeholder alignment, tooling, and deployment conditions. PMI’s framework is careful about linking capability gaps to resourcing and staffing decisions rather than automatically assuming improvements in accuracy or timeline. So the clearest PMI-aligned lesson learned is that stronger in-house knowledge would have reduced the need to seek outside assistance. That interpretation is also consistent with the broader PMI emphasis on building the right team capability mix for AI initiatives before and during delivery.