Answer:
Etiquette is a code of behavior that delineates expectations for social behavior according to contemporary conventional norms within a society, social class, or group. ... The etiquette of business is the set of written and unwritten rules of conduct that make social interactions run more smoothly
Explanation:
gd morning
have a lovely day
be happy keep smiling
Just took it! Unfold, Open up! Hope it helped (should be D)