Explanation:

- Role Engulfment: This occurs when a person becomes so immersed in a role that it completely defines their identity. The individual cannot separate themselves from the role.

- Sick Role: This is a concept in medical sociology that describes the social behaviors of individuals who are sick. It involves being exempt from normal roles and not being blamed for the condition.

- Role Distance: This is when a person creates a distance between their role and their personal identity. They might not take the role entirely seriously or maintain a personal space apart from it.

- Role Handicap: This term isn't commonly used in sociology. It might imply a role that hinders or limits someone, but it's not a standard concept.

- Correct Answer: Role Distance . This doctor joking during a serious operation is demonstrating some separation from the role's seriousness.

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