What must a sentry do according to the 6th Order when receiving orders?

The correct response highlights the responsibility of a sentry to only acknowledge and relay instructions from authorized personnel. This principle is crucial in maintaining order and discipline within a military or controlled environment. By focusing on passing along orders specifically from individuals who have the authority to give them, the sentry ensures that communication is reliable and that there is no confusion or potential for misdirection.

This protocol keeps operations running smoothly and helps to uphold a chain of command, which is essential in maintaining security and effective response to situations. It establishes a clear boundary regarding who has the right to issue commands, thereby preventing unauthorized interference in operations.

In this context, other options do not align with the principles of the orders. For instance, obeying commands from any person could lead to chaos and undermine the authority of command structure. Similarly, the directive regarding passing orders only to the next officer limits communication unnecessarily, while the suggestion to act independently goes against the fundamental principle of following the chain of command.