A requirements traceability matrix (RTM) is a tool that helps to track the relationship between the requirements and the product features. It can be used to determine the scope of a change request by identifying which requirements and test cases are affected by the modification of an existing feature. A project schedule and cost baseline are not directly related to the product features, but rather to the project management aspects. A requirements attributes table is a tool that helps to classify and prioritize the requirements, but it does not show the link between the requirements and the product features. A sequence diagram is a tool that helps to illustrate the interactions between the components of the product, but it does not show the traceability of the requirements. References: PMI Professional in Business Analysis (PMI-PBA)® Examination Content Outline1, PMI Guide to Business Analysis2, Business Analysis for Practitioners: A Practice Guide