Consumer surplus is a measure of

a. How much a consumer's marginal utility differs from her total utility.

b. How much a consumer believes that the good purchase is a bargain.

c. How much more value a consumer recipes from her purchase than she has to pay for them.

d. How much less than her income a consumer spends on goods.

The consumer equilibrium

a. pulls the consumer in the same direction as the demand curve does.

b. pulls the consumer in a different direction than the demand curve does.

c. may or may not be consistent with the demand curve.

d. is a separate concept from the demand curve and cannot be reconciled with the demand curve.