In the RAP model, a Business Object (BO) is composed of the following key parts:

A CDS view, which defines the data model layer (entity structure, projections, associations).

A Behavior Definition (BDEF), which defines the behavior layer -- what operations can be performed (create, update, delete, validations, determinations).

Therefore:

Option B and C are correct.

Option A is incorrect because 'Process definition' is not a RAP construct; process logic is handled via behavior implementation and determinations.

Option D is incorrect because 'Authentication rules' are managed externally (e.g., via IAM, authorizations), not inside the BO.

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