Explanation
The BA should ensure the business needs are articulated from the enterprise perspective, because this will help to align the needs with the strategic goals and objectives of the organization, and to ensure the needs are relevant, feasible, and beneficial for the enterprise as a whole. The other options are not the primary focus of the BA at this stage of defining the business opportunity. While traceability, solution description, and risk assessment are important aspects of business analysis, they are more relevant for later stages of the business analysis process, such as requirements analysis, solution design, and solution evaluation. References: CBAP Handbook, CBAP Study Guide, BABOK Guide