The correct answer is A. Etiquete. The correct spelling is etiquette.
Etiquette is a code of polite behavior in society or among members of a particular profession or group. It is a set of conventional rules that are accepted as appropriate and necessary in social, professional, or official life.
Pattern is a repeated design or arrangement of shapes or colors. It can be found in nature, in art, and in design.
Privilege is a special right, advantage, or immunity granted or available only to a particular person or group.
Dialogue is a conversation between two or more people. It can be written or spoken.
