(Table: Prices and Demand) The New Orleans Saints have a monopoly on Saints logo hats.The marginal cost of producing a hat is $18.If the Saints increase the number of hats they sell from 4 to 5,the quantity effect is a(n) _____ in total revenue of _____.

A) decrease;$20
B) increase;$20
C) decrease;$8
D) increase;$8

Quantity Effect

Refers to the change in consumer behavior resulting from a change in the price of a product, where the quantity demanded increases as the price decreases and vice versa.

Total Revenue

The total amount of money received by a company for goods or services sold, before any expenses are subtracted.

Marginal Cost

The additional cost incurred from the production of one additional unit of a good or service.