13. If the marginal utility of consuming an additional slice of pizza is negative, what can we infer?
A. The consumer is irrational.
B. The consumer should consume more pizza.
C. The consumer is already consuming too much pizza.
D. The consumer’s total utility is decreasing.
13. If the marginal utility of consuming an additional slice of pizza is negative, what can we infer?
A. The consumer is irrational.
B. The consumer should consume more pizza.
C. The consumer is already consuming too much pizza.
D. The consumer’s total utility is decreasing.