Final answer:
The question pertains to the color of the rate mark for a construction apprentice on a service dress blue uniform. Reference texts provided do not directly answer the question, and properly answering requires consulting official military uniform regulations.
Step-by-step explanation:
The question posed refers to military uniform standards, likely pertaining to the U.S. Navy considering the reference to a 'construction apprentice,' which is a rating within the Seabees, the construction battalions of the U.S. Navy. Unfortunately, the provided reference texts about Joseon scholar-official attires and a Red Cross nurse's uniform do not directly address the service dress blue uniform color for a construction apprentice's rate mark, thus making it inappropriate for me to provide a speculative answer.
The correct response would typically be found in the official uniform regulations guide for the specific military branch in question, which, in the case of the U.S. Navy, would be outlined in specific documents that detail dress and appearance standards for service members.
A construction apprentice on the service dress blue uniform should wear a white rate mark. The rate mark indicates the individual's rank or rate within the Navy and is worn on the left sleeve of the uniform. Construction apprentices in the Navy wear a white rate mark to signify their rank.