Assessing communication needs ensures effective messaging in SAP OCM. Option C is correct because it prevents under- or over-communication, maintaining engagement without overwhelming stakeholders. Option D is correct as tailoring information (e.g., by role or impact) increases relevance and adoption. Option A is incorrect-stakeholder identification precedes communication planning, not vice versa. Option B is also incorrect; change impacts are assessed separately, not primarily through communication needs.
Extract from SAP OCM Concepts: SAP OCM stresses tailored communication to avoid deficits or overload (SAP OCM Framework, Communication Dimension).

SAP's integrated enablement approach in OCM prepares users for cloud adoption. Option A is correct because enablement execution includes project management (coordinating efforts), content development (creating materials), and delivery (training sessions), forming the operational core. Option D is correct as enablement planning-strategy (defining approach) and learning needs analysis (identifying gaps for project team/users)-sets the foundation for execution.
Option B is incorrect; advisory (best practices, coaching) supports but isn't a core element-it's external guidance. Option C is incorrect; infrastructure (administration, systems) is logistical, not a defining component. SAP OCM focuses on planning and execution as the heart of enablement.
"SAP's enablement approach comprises planning (strategy and needs analysis) and execution (management, content, delivery) to drive user readiness" (SAP Activate, Integrated Enablement Framework).