Halfway through the execution of a project, a key team member resigns from the company...

This question falls under the People domain because it concerns team continuity, capability preservation, and leadership during a staffing change. PMI’s PMP Examination Content Outline specifically highlights the need to maintain team and knowledge transfer. When a key team member is leaving in a short period, the most important immediate action is to preserve critical project knowledge so the remaining team can continue the work with minimal disruption. Working with the departing team member on a knowledge transfer plan is therefore the best next step.

Option A is not appropriate because resignation decisions are personal and outside the project manager’s control. Option B may help with short-term completion of tasks, but it does not protect the project from losing essential know-how. Option D may eventually be necessary, but hiring a replacement will likely take time and does not solve the immediate continuity risk. PMP logic prioritizes continuity of delivery and retention of operational knowledge. A structured knowledge transfer approach helps the team absorb expertise, understand unfinished work, reduce dependency on one individual, and protect the project from additional delays after the team member leaves.