In Traditional Economic Theory, Consumers Are Assumed to Be Rational

In traditional economic theory, consumers are assumed to be rational, which means that they:

A) attempt to maximize utility, subject to a budget constraint, and they do so with a limited knowledge about prices.
B) have full knowledge of prices and attempt to maximize utility, subject to a budget constraint.
C) look to maximize utility, often without regard to income or prices.
D) behave in unpredictable but observable ways of choosing goods and services.