When a user logs into a system using SSH, what is the format of SELinux security context which will assign the user_r role and the user_t domain to their login sessions?

This option incorrectly reverses the typical order of the context parts for `sshd_t` and lacks clear separation for the distinct contexts.

This option has an incorrect order of elements for both contexts (e.g., `sshd_t:system_r` should be `system_u:system_r:sshd_t`, and `user_t:user_r` should be `user_u:user_r:user_t`).

SELinux contexts are typically represented as `user:role:type:level`. For SSH login, the `sshd` daemon operates under its own context, commonly `system_u:system_r:sshd_t`. Once a user authenticates, their interactive session (shell) is then assigned a new context, such as `user_u:user_r:user_t`, where `user_r` is the role and `user_t` is the type/domain for the user's processes. The question specifically asks for the format that assigns `user_r` role and `user_t` domain to *their login sessions*, implying the context of the user's interactive session.

Similar to B, this option has an incorrect order of elements within the contexts, as the standard format is `user:role:type`.