Use the Following to Answer Questions -(Table: Prices and Demand)The Toronto Maple Leafs Have a Monopoly

Use the following to answer questions : $$\begin{array}{l}\text { Table: Prices and Demand }\\\begin{array} { l c } \hline \begin{array} { l } \text { Quantity } \\\text { of Hats } \\\text { Demanded }\end{array} & \begin{array} { c } \text { Price } \\\text { per Hat }\end{array} \\\hline 0 & \$ 30 \\1 & 28 \\2 & 26 \\3 & 24 \\4 & 22 \\5 & 20 \\6 & 18 \\7 & 16 \\8 & 14 \\\hline\end{array}\end{array}$$
-(Table: Prices and Demand) The Toronto Maple Leafs have a monopoly on Leafs logo hats.The marginal cost of producing a hat is $18.If the Leafs 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