How do you match a user or a computer identity in the security policy?

The correct answer is D. In Check Point Identity Awareness, identity-based matching in the Access Control policy is performed with Access Role Objects. An Access Role can combine user identity, computer identity, and network location into one policy object used in the Source or Destination columns. Option A is too vague and does not name the correct object type. Option B is wrong because AD Query is an identity acquisition source, not the policy object used to match users in the rulebase. Option C is incomplete because raw user or group objects alone are not the primary R82 Access Control rulebase mechanism for identity matching; Access Roles are used to express identity conditions properly. The practical design is: collect identities using sources such as AD Query, Identity Collector, Identity Agents, Browser-Based Authentication, RADIUS Accounting, or Identity Web API; then enforce access using Access Roles in the policy. Reference topics: Identity Awareness, Access Roles, user/computer identity matching, Access Control policy.