According to the PMBOK® Guide and the PMI Guide to Business Analysis, a peer review is a specific type of quality control technique used to verify the technical accuracy and compliance of a project artifact before it is finalized.

Verification of Standards: The primary goal of a peer review is to ensure that the work product (whether it is a requirement document, a piece of code, or a design blueprint) is high quality and consistent with how the organization expects work to be done. This includes checking for formatting, clarity, and adherence to established organizational standards and templates.

Error Detection: Peer reviews are designed to catch mistakes, omissions, or inconsistencies that a single author might overlook. By having a colleague (a " peer " ) examine the work, the team ensures that the artifact is technically sound and " fit for purpose. "

Continuous Improvement: This process also facilitates knowledge sharing between team members, ensuring that the " best practices " of the organization are applied uniformly across all project documentation.

Analysis of other options:

Option A, B, and D: These options focus on the content of the documentation (business rules and data requirements). While a peer review will check if these are present, the specific outcome of a review is the confirmation of quality and compliance. Simply documenting rules or data does not guarantee that the work is correct or meets organizational standards. A peer review validates that what has been documented was done so correctly and according to the rules of the organization.

Per PMI standards, a peer review is an essential quality assurance activity where the main objective is to confirm that the artifact adheres to established organizational standards, ensuring consistency and professional rigor across the project.