Concept:The downward-sloping demand curve reflects the law of diminishing marginal utility.
Explanation:As a consumer buys more units of a commodity, the additional satisfaction from each extra unit, called marginal utility, falls.
Therefore, the consumer is willing to pay less for each successive unit.
This inverse relationship between price and quantity demanded makes the demand curve slope downward from left to right.
The correct option is the one that states the consumer will pay less when marginal utility falls.
Answer:A. less as the marginal utility falls