The project manager should evaluate the impact to the users and create a plan to address it, as this is part of identifying stakeholders. Identifying stakeholders involves identifying the people, groups, or organizations that could impact or be impacted by the project, and analyzing their expectations, interests, and influence. By evaluating the impact to the users, the project manager can determine their needs, requirements, and potential issues, and create a plan to engage them effectively and manage their expectations. The other options are not the best ways to handle this situation, as they either ignore, assume, or delegate the stakeholder identification process. References: (Professional in Business Analysis Reference Materials source and documents)

PMBOK Guide, 6th edition, Chapter 13, Section 13.1

PMP Exam Content Outline, June 2019, Domain I, Task 2

PMP Sample Test Questions, Question 382