正解:A
Comprehensive and Detailed Explanation:
A Certification Practice Statement (CPS) is a detailed document that describes the practices a Certificate Authority (CA) uses when issuing and managing digital certificates. It includes procedures for handling compromised private keys, revocation, renewal, and security controls.
Certificate policy (B): High-level rules governing certificate usage, but not operational details.
PKI disclosure statement (C): Provides users with general PKI-related information.
Certificate revocation list (D): A technical mechanism listing revoked certificates, but not the procedures for managing compromise.
# ISACA Reference: CISA Review Manual 27th Edition, Domain 5, section on PKI components and certificate lifecycle management.