Theory posits that relationship satisfaction is determined by people's perceptions of costs and rewards, their beliefs about what kind of relationship they deserve, and their estimated chances of a better alternative. a. balanceb. comparisonc. equityd. social exchange

D. Social exchange                                                                                                                        

Explanation:

Social exchange theory: The term social exchange theory was proposed by a famous sociologist named George Homans, and is referred to as a phenomenon that describes social behavior as a result of the exchange process. The motive of the exchange process is to minimize costs and maximize benefits.

According to the social exchange theory, an individual weighs potential risks and benefits of the social relationships and therefore he or she will make decisions based on specific outcomes.

In the question above, the given statement signifies the role of the social exchange theory.

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.