正解:C
The project manager should evaluate the impact, document the analysis, and present options to key decision- makers. The case describes a complex healthcare transformation with diverse stakeholder groups, competing expectations, regulatory sensitivity, operational workflow changes, and adoption concerns. In this environment, stakeholder-requested changes cannot be accepted, rejected, or deferred informally. Each change must be assessed for effects on scope, schedule, cost, quality, risk, compliance, user adoption, and benefits realization. Documenting the analysis creates transparency and gives decision-makers a factual basis for approving, rejecting, deferring, or modifying the request. Reviewing the WBS may help determine scope impact, but it does not fully address financial, timeline, stakeholder, and risk implications. Escalating every decision directly to the sponsor without analysis weakens governance quality. Deferring changes automatically could cause the project to miss high-value stakeholder needs. PMBOK Guide Eighth Edition topics: integrated change control, impact analysis, stakeholder engagement, healthcare governance, scope- cost-schedule trade-offs, and decision support.