Which one of the following security mechanisms provides the BEST way to restrict the execution...

Role Based Access Control (RBAC) is the security mechanism that provides the best way to restrict the execution of privileged procedures. Privileged procedures are the actions or commands that require higher or special permissions or privileges to perform, such as changing system settings, installing software, or accessing sensitive data. RBAC is a security model that assigns permissions and privileges to roles, rather than to individual users. Roles are defined based on the functions or responsibilities of the users in an organization. Users are assigned to roles based on their qualifications or credentials. RBAC enforces the principle of least privilege, which means that users only have the minimum permissions and privileges necessary to perform their tasks. RBAC also simplifies the administration and management of access control, as it reduces the complexity and redundancy of assigning permissions and privileges to individual users. RBAC is not the same as biometric access control, federated identity management, or application hardening. Biometric access control is a security mechanism that uses physical or behavioral characteristics of the users, such as fingerprints, iris patterns, or voice recognition, to authenticate and authorize them. Federated identity management is a security mechanism that enables the sharing and recognition of identity information across different organizations or domains, using standards and protocols such as SAML, OAuth, or OpenID. Application hardening is a security mechanism that involves the modification or improvement of an application’s code, design, or configuration, to make it more resistant to attacks or vulnerabilities.