What units do the rules surrounding the MNCL apply to?

The correct choice relates specifically to the applicability of the Minimum Necessary Command Level (MNCL) rules. The MNCL is established to ensure that only authorized personnel have access to data and equipment for which they have a recognized need. Therefore, any unit processing equipment that is specifically listed on the MNCL is subject to these rules, as this ensures compliance with security protocols across the board.

By being all-encompassing in this way, the MNCL ensures that every relevant unit, regardless of its primary focus, maintains strict adherence to access control measures, thus minimizing security risks. The role of the MNCL is critical in safeguarding sensitive information associated with aircraft armament systems and ensuring that only those with the proper authority can engage with the specified equipment.

While the other choices mention specific types of units or branches, they do not capture the comprehensive nature of the MNCL's rules. This makes it clear that the MNCL is a broad framework intended for all units involved with the relevant equipment, rather than being limited to specific categories or branches of the military.