The theory that social interaction involves trade in valued resources is the central insight of:

A) functionalism
B) conflict theory
C) exchange theory
D) dramaturgy
E) Marxist social theory

The theory that social interaction involves trade in valued resources is the central insight of exchange theory. This theory views social interaction as a series of exchanges, where individuals seek to maximize their rewards and minimize their costs. It assumes that individuals are rational actors who make decisions based on self-interest and the perceived benefits of interactions.