A. SCAP (Security Content Automation Protocol) is a collection of open standards for automating the assessment, measurement, and reporting of security configurations and vulnerabilities across IT systems. SCAP includes a suite of tools and technologies, including the Common Vulnerabilities and Exposures (CVE) dictionary, the Common Configuration Enumeration (CCE) dictionary, and the Extensible Configuration Checklist Description Format (XCCDF), among others. By using SCAP, the systems administrator can analyze and report configuration issues on the information systems and verify existing security settings efficiently. Therefore, the BEST option is A. SCAP.