Which of the following statements is true about displaying flags?

The statement regarding the U.S. flag must always being displayed on the top of a pole is rooted in flag etiquette and is significant in maintaining respect for the national symbol. When multiple flags are displayed on a single pole, the national flag is given the highest position as a sign of honor and respect. This practice reinforces the importance of the U.S. flag in representing the nation, and it is consistent with guidelines set forth by the U.S. Flag Code.

The other options do not adhere to proper flag protocols. For example, displaying flags in any orientation could be disrespectful and does not follow the established etiquette. Showing all flags with their unions facing the same direction is indeed important, but that principle applies mainly when flags are displayed side by side, not necessarily in terms of vertical placement on a pole. Lastly, displaying multiple flags equally on a single pole can lead to confusion and does not respect the hierarchical status of the U.S. flag. Thus, the correct practice is to always fly the U.S. flag at the top of the pole to honor its significance.