What are the planning considerations for a cover operation?

The correct choice focuses on the necessity for the unit involved in a cover operation to function independently and be self-contained. This indicates that the unit must be capable of carrying out its mission without relying heavily on outside support, which is crucial in situations where stealth and operational security are paramount.

In cover operations, the ability to operate independently means that the troops must be equipped to handle various scenarios without needing additional resources or reinforcements from other units. This independence ensures that the operation can proceed smoothly without delays due to external dependencies, which could compromise the mission's success. It encompasses logistical support, communication, and operational flexibility, allowing the cavalry leader to respond to changing dynamics on the battlefield effectively.

While the other options touch on important military considerations, they do not align with the unique requirements of a cover operation. For instance, operating with a large bandwidth of troops might not be feasible for stealth missions, and permanent installations are not typically a necessity for cover operations designed for mobility and secrecy. Additionally, the idea of being able to operate indefinitely doesn't adequately address the context of independent functionality, as operations are often time-sensitive and mission-specific.