Answer: A middle-aged man wears jeans to a black-tie wedding.
Explanation:
Both sociology and psychiatry examine deviant behavior, which is any conduct that goes against the general norms of society.
A teenager texting a lot is the expected behavior of someone at that age. Wearing a short skirt and makeup is the expected behavior of women in a night out.
Up to the twentieth century, social protests were considered as deviant behavior, because they were seen as indicative of a malfunction in the social fabric, but researchers now study the rational and instrumental aspects of political demonstrations.
Only the case of a middle-aged man going against the rules of a black-tie wedding could be considered as deviant behavior.