Which knowledge area describes tasks responsible for managing and maintaining the requirements and design

Requirements Analysis and Design Definition focuses on structuring, specifying, and modeling requirements to define solution components, not managing their ongoing lifecycle state.

Requirements Life Cycle Management (RLCM) is the knowledge area dedicated to managing the ongoing state of requirements and designs after they are defined. It includes tasks for tracing requirements back to business needs, maintaining their accuracy, prioritizing them, and obtaining stakeholder approvals to ensure they remain valid and current throughout the solution lifecycle.

Business Analysis Planning and Monitoring covers how business analysis activities will be planned, monitored, and reported on, not the management of requirements content itself.

Elicitation and Collaboration covers obtaining information from stakeholders and confirming elicited results, not maintaining or governing requirements after they are captured.