A cultural norm that specifies when, where, and how a person should express an emotion is referred to as a a. conformative law. b. controlled expression. c. normative action. d. display rule.

d. display rule.

Explanation:

The display rules are those of the social group and the cultural informal norms and distinguish how one should express themselves and can be described as culturally prescribed rules that people can lean early through the specialization within the society.