A right-to-audit clause is the most important clause when the organization needs access to the third-party provider’s records. Outsourcing does not remove management’s responsibility for payroll accuracy, confidentiality, compliance, tax reporting, and control effectiveness. The organization must retain the contractual ability to inspect records, request evidence, review controls, and obtain assurance reports. A termination clause defines how the contract may end, but it does not guarantee audit access. A confidentiality clause protects sensitive information but does not provide inspection rights. A data security accountability clause is important, but it is narrower than the right to examine records and controls. Internal audit should confirm that audit rights are clear, enforceable, and practical. Therefore, Option B is correct.