Risk analysis is the type of analysis that the BA can use to alleviate the stakeholders’ concerns with the level of uncertainty they are willing to accept with the solution. Risk analysis is the process of identifying, assessing, and prioritizing the potential threats and opportunities that may affect the achievement of the business objectives or the delivery of the solution. Risk analysis can help the BA to understand the sources, causes, and impacts of uncertainty, and to communicate them to the stakeholders in a clear and transparent way. Risk analysis can also help the BA to propose and implement appropriate risk responses, such as avoidance, mitigation, transfer, or acceptance, to reduce the negative effects or enhance the positive effects of uncertainty. The other options are not the best types of analysis for this purpose, as they are more focused on identifying and measuring the gaps, costs, benefits, or specifications of the solution, rather than the uncertainty. References: Risk Analysis and Management, CBAP / CCBA Certified Business Analysis Study Guide, 2nd Edition, BABOK Guide