Change agents in SAP OCM extend change management’s reach by handling local activities (e.g., unit-specific workshops). Option C is correct because it scales efforts—e.g., a central change manager can’t train 10 sites alone, but agents in each location can, multiplying coverage efficiently. For instance, an agent in a regional office might run a Q&A session tailored to local process concerns, amplifying OCM impact without overloading the core team.

Option A is incorrect—milestone adherence is a project management outcome, not a direct value of agent tasks. Option B is incorrect; attitude shifts might occur, but it’s not the primary benefit—effectiveness is. Option D is incorrect—reducing manager resistance depends on broader engagement, not just agent activities. SAP OCM leverages agents for scalability.

“Change agents planning and executing local activities add value by scaling change management efforts across the organization effectively” (SAP Activate, Change Network Value).