2. The law of diminishing marginal utility refers to the fact that

a. the total utility curve for a good is its demand curve, which, being always downward sloping, causes the good’s marginal utility to diminish.

b. when total utility of a good falls, and since marginal utility is the change in total utility divided by the change in quantity, the good’s marginal utility, too, falls.

c. as more of a good is consumed, the total utility a person derives from each additional unit diminishes.

d. as more of a good is consumed, it diminishes, which causes the good’s marginal utility to diminish.

e. the total utility of a good eventually decreases, which eventually causes the good’s marginal utility to diminish.