According to Salesforce Implementation Best Practices, for complex Service Cloud rollouts (including Case, Knowledge, and Omni-Channel), the optimal approach is to: * Conduct role-based, hands-on training focused on real-life scenarios. * Use a phased rollout strategy, starting with a pilot group to collect feedback and refine processes before full deployment. This minimizes disruption, builds confidence, and supports adoption across varying skill levels. Option B and C lack structure, training depth, and change management alignment. Referenced Salesforce Materials: * Service Cloud Consultant Exam Guide - Implementation Strategies Domain. * Salesforce Help: "Plan User Enablement and Phased Rollouts." * Salesforce Project Delivery Framework - Adoption and Training Best Practices.