Glowing Scents Candle Company Has Employed a Quantity Discount

Glowing Scents Candle Company has employed a quantity discount. Which statement describes how Glowing Scents might do this?

A) Glowing Scents puts its gingerbread, pine tree, and eggnog scented candles on sale after Christmas is over.
B) Glowing Scents sends advertisements to its customers letting them know that for the month of June, all tealights are on sale.
C) Glowing Scents prices its candles artificially high to give the impression that they are of high quality.
D) Glowing Scents offers a candle of the month that is $5 less expensive than all the other candles.
E) Glowing Scents offers customers one free candle for every three candles they buy.