Building human relationships and trust through exchanges of favors based on reciprocity is called

A) law of scientific management.
B) framing.
C) inclusion.
D) social exchange.
E) communication delegation.

The practice of exchanging favors based on reciprocity helps in building human relationships and trust. This process is known as social exchange, which involves the exchange of resources, information or services between two or more people. It is a fundamental aspect of human interaction and is used to maintain and improve social relationships. The other options are not related to the concept of social exchange.