Which targets can be managed by using Enterprise Manager Cloud Control?

Answer is confusing and not found correctly hence limited to A
Please find below snap from the notes.

Enterprise Manager provides a central point for monitoring and administration in the data center. To achieve this, it collects information from a variety of distributed components and consolidates it in a centralized repository. The key Enterprise Manager components must all work in concert for the system to operate correctly. The components involved in collecting, processing and presenting this information to users are as follows:
 Targets – A Target, or more specifically, a Target instance, can be defined as any entity that can be monitored within an enterprise. This entity can be an application running on a server, the server itself, the network, or any of its constituent parts.
 Oracle Management Agent (Agent) – The Oracle Management Agent is a software component that is installed on every monitored host in the enterprise. Agents collect information from the Targets running on the host and send this information to the Oracle Management Service (OMS). Agents also perform operations against the Targets on behalf of Enterprise Manager users. There are many different types of Targets that Enterprise Manager can manage. Examples include Host, VM Guest, Database, Listener, ASM, WebLogic Server, Service Bus and Fusion Applications components

Even OMS, OMR, agent, applications, application servers (host), listeners are considered as targets and can be monitored via 12c cloud control. Hence, best answer is F.

Oracle document link provided is confusing.