At what stages of project should the Identify Stakeholder process be performed?

According to PMI guidance, Identify Stakeholders is not a one-time activity - it must be revisited at the beginning of each project phase because new stakeholders may emerge, existing stakeholders' interests or influence may shift, and the project environment evolves as phases progress. Repeating the process ensures the stakeholder register and engagement strategies remain current and effective.

Performing Identify Stakeholders only at the project start misses new or changed stakeholders who emerge in later phases, leaving critical engagement gaps.

Waiting until the project manager is already concerned about satisfaction is a reactive approach that contradicts the proactive, scheduled nature of proper stakeholder identification.

This option adds 'when the project charter is produced' as a separate trigger, which is redundant since charter production occurs at the project start - and it introduces over-specificity that makes it a less clean answer than the phase-based repetition captured in A.