People who provide you with goods and services b. do so because they get something in return.
Explanation:
People help each other on expecting something in return. They offer you with goods and services and expect the same or something from you.
The recent research conducted by an economist reveals that the millions of people are interdependent. They say that people depend on others for the goods and services for their own needs.
Interdependence helps in improving strength and unity among people. This also helps in focusing on their personal growth.
