Exhibit 6-4 Total Utility for Multiplex Tickets, Video Rentals, and Popcorn

Exhibit 6-4 Total utility for multiplex tickets, video rentals, and popcorn $$\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Total Utility } \\\text { from Multiplex Tickets }\end{array} & \begin{array} { c } \text { T otal Utility } \\\text { from Video Rentals }\end{array} & \begin{array} { c } \text { Total Utility } \\\text { from Popcorn }\end{array} \\\hline 1 \text { movie ( } 30 \text { utils) } & 1 \text { video (14 utils) } & 1 \text { bag (8 utils) } \\2 \text { movies (54 utils) } & 2 \text { videos (24 utils) } & 2 \text { bags (13 utils) } \\3 \text { movies (72 utils) } & 3 \text { videos (30 utils) } & 3 \text { bags } ( 15 \text { utils) } \\4 \text { movies (84 utils) } & 4 \text { videos (32utils) } & 4 \text { bags (16 utils) } \\\hline\end{array}$$
-In Exhibit 6-4, assume the Multiplex tickets cost $6 each, video rentals cost $2 each, and bags of popcorn cost $1 each. What is the marginal utility of renting a third video?

A) 6 utils.
B) 8 utils.
C) 10 utils.
D) 30 utils.