Which objects are capable of sharing data through context mapping?

The ability to share data through context mapping is an essential feature in SAP's UI5 development framework. Context mapping allows different layers of the application to exchange data seamlessly and is particularly critical in the Model-View-Controller (MVC) architecture that SAP applications often employ.

Component controllers and view controllers are specifically designed to facilitate this data exchange. Component controllers manage the overall state and lifecycle of components, and they can hold context that is relevant across their associated view controllers. View controllers, on the other hand, are responsible for individual views and can utilize the context defined in the component controller to render data accurately.

By using context mapping between component controllers and view controllers, developers can ensure that any changes made at one level automatically propagate to others, maintaining a cohesive state across the application. This capability plays a crucial role in enhancing user experience by ensuring that the UI reflects the current data state dynamically.

The other alternatives involve combinations of objects that either don't inherently provide context sharing capabilities or do not align with the intended design pattern of context mapping in SAP, thus making them less suitable in this scenario.