If an organization wants to re-use requirements, where should the defined requirements be kept?

According to the BABOK® Guide, a requirements repository is a tool that stores and manages the requirements and designs of a project or an organization. A requirements repository can facilitate the re-use of requirements by providing a centralized and accessible location for storing, retrieving, and updating the requirements. A requirements repository can also help to maintain the traceability, quality, and consistency of the requirements. Therefore, option B is the correct answer. The other options are not suitable places for keeping the defined requirements for re-use, as they are either documents or scopes that may not be easily accessible, searchable, or modifiable. References: BABOK® Guide, page 40; Business Analysis Expert Certification, CCBA® | IIBA®, section “What Should I know to be CCBA Certified?”