Which of the following is a requirement for executing morning colors?

The requirement for executing morning colors involves having properly sized flags and pennants. This ensures that the flags displayed are appropriate for the vessel's size and meet the standards set by the Navy or relevant maritime authority. Properly sized flags contribute to clear visibility and recognition, signifying the vessel's readiness and adherence to ceremonial practices.

Uniform dress for all personnel, while often preferred to maintain a disciplined appearance, is not a strict requirement for the execution of morning colors. The presence of the entire crew on deck can enhance the ceremonial aspect but does not affect the procedure itself. Executing morning colors only during daylight hours is a guideline, but the critical operational element is the flags and their visibility. Ensuring that flags are properly sized is the primary factor that must be met for the ceremony to be conducted appropriately.