Final answer:
The reduction in prices offered for larger purchases is best classified as a Discount. This practice creates a consumer surplus as buyers pay less than their maximum willingness to pay, reflecting a good deal.
Step-by-step explanation:
The best option for a reduction in prices made on larger purchases is classified as a Discount. This is a common business practice where sellers offer a reduction in the price of a good or service in order to incentivize bulk purchases or to reward customers for their loyalty or the scale of their buying. Economists may refer to this as consumer surplus, which occurs when the price a consumer pays is less than what they are willing to pay, thus considering it a 'good deal'.