It is saying that that's his/her captain. hope this helps
Answer: A. Etiquette
Explanation:
Etiquette simply refers to the set of rules and customs that are required for polite behaviour, which typically occurs among the individuals in a particular profession or among a group of people. Etiquette, brings about good manners. Without etiquette, people would be rude towards one another.
Therefore, the correct option is A.
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