Answer:
The phrase "social exchange" should be replaced by "altruism"
Step-by-step explanation:
Altruism is selfless concern for the well-being of others. It is a moral principle that is concerned with helping others and making sure others are happy even at ones own cost. Social exchange is not what is defined above but altruism. Social exchange is based on the social exchange theory that social behavior is inherent in the exchange process such as benefits and risks in a social relationship