Answer: 2. The norm of reciprocity
Step-by-step explanation:
Reciprocity simply mean the act or practice of exchanging things with others for mutual benefits.
The norm of reciprocity sometimes referred to as the rule of reciprocity, requires one to pay in kind what another has done for him/her. It is a social belief where we feel obligated to repay the favor shown to us. This is one of the basic laws of social psychology, in which we pay back what we received from others.
The norm of reciprocity varies widely in its details from situation to situation, and from society to society. This practice is important as it mandates people to be invested in their relationship, such that if the relationship is important to them, they become invested emotionally in it to build and maintain it.
There are three known types of reciprocity: generalized, negative and balanced. Generalized reciprocity refers to an exchange that doesn’t incur immediate repayment of goods or services. Negative reciprocity results when one side of the two party tries to get more out of the exchange than the other party.
While the last which is the balanced reciprocity involves calculation of value and repayment of goods within a specific time frame.