The correct answer is B. Social clock
Explanation:
The term "social clock" refers to a sociological and psychological phenomenon in which communities or human societies determine the appropriate time for certain events of human life. Common events defined by the social clock include when to get married, have children, get a job, among others. Additionally, the time that is considered as "appropriate" depends on each culture or context and it is related to important values, norms, beliefs, among others. Therefore, it is the term "social clock" the one that refers to cultural expectations for when people should accomplish certain events.
