What type of access control allows users to make decisions on granting access to resources?

Discretionary Access Control (DAC) is the correct answer because it allows the owner of a resource to have full control over the access to that resource. In a DAC model, users can make decisions about who can access their resources, which means they can grant or restrict access to other users at their discretion. This approach contrasts with more rigid models like Mandatory Access Control (MAC) and Role-Based Access Control (RBAC), where access decisions are based on predefined policies or roles, rather than individual user choice.

In MAC, access is controlled by the system, enforcing strict policy rules that users cannot modify. RBAC assigns access based on roles, limiting users to permissions linked to their designated role without allowing personal customization. Since DAC empowers users to determine access, it is particularly suited for environments where individual ownership and management of resources are prioritized.