Explanation
The best answer is to work with stakeholders to determine what business analysis activities should be done in the present initiative.
Answer B is incorrect. There's not a need to define an organizational standard immediately, as this can evolve over time based on projects and business analysis experience in the organization.
Answer C is incorrect. A business case isn't needed; the business analyst needs to work with the stakeholders to define the needed activities.
Answer D is incorrect. While this answer is tempting, it does not address the cooperation and involvement of the stakeholders.

Explanation/Reference:
The best answer is to work with stakeholders to determine what business analysis activities should be done in the present initiative.
B is incorrect. There's not a need to define an organizational standard immediately, as this can
evolve over time based on projects and business analysis experience in the organization.
C is incorrect. A business case isn't needed; the business analyst needs to work with the
stakeholders to define the needed activities.
D is incorrect. While this answer is tempting, it does not address the cooperation and involvement
of the stakeholders.

Explanation
Functional decomposition is a technique that breaks down a complex system or process into smaller and simpler components or activities. It helps to define scope by identifying the functions that are performed by or within a system or process. Decision modelling, SWOT analysis, and mind mapping are not techniques for defining scope based on business processes and activities. References: BABOK Guide v3, page 97; CCBA Mock Test, question 15