Which one of the following statements about viewpoints is correct?

Viewpoints are often generic and reusable across multiple architectures, providing standard ways to represent different aspects, rather than being unique to a single architecture.

Viewpoints are used throughout various phases of the Architecture Development Method (ADM) where views are created to address stakeholder concerns, not exclusively limited to Phases E (Opportunities & Solutions) and F (Migration Planning).

A viewpoint defines the perspective from which a view is constructed, specifying the concerns it addresses, the stakeholders it serves, and the modeling techniques and notations used, thus acting as a template for creating architectural views.

A viewpoint is the definition of what to show, while a view is the actual representation or visualization that a stakeholder sees, generated according to a specific viewpoint.