Jack wants to configure a Linux system to use mandatory access controls. What tool should he select that is commonly used to provide this functionality?

SELinux is a Linux kernel module that provides a variety of security capabilities and access control methods, including support for MAC (mandatory access control) for Linux systems. Group Policy is a Windows tool, the CIS benchmarks provide security configuration recommendations for systems but do not directly provide mandatory access control, and containerization is used to make application installations portable.