General Order 10 requires saluting which of the following?

General Order 10 states that service members must render salutations to all officers and to U.S. colors that are not cased. This requirement reflects the respect and protocol expected within military conduct. Saluting all officers reinforces the hierarchy and recognizes the authority of the ranks above you, promoting discipline and cohesion within the military structure. Additionally, honoring colors that are not cased serves to respect the national and service flags, symbolizing the values and sacrifices associated with military service.

While the other options may cover specific aspects of military tradition, they do not encompass the full scope outlined in General Order 10. The emphasis on both all officers and colors distinguishes this order as it aims to uphold respect universally among ranks and the national symbols, crucial elements of military ethos.