Table 21 -Refer to Table 2

Table 2.1
$$\begin{array}{l}\text { Table } 2.1\\\begin{array} { | l | l | l | l | l | l | } \hline \text { Item } & \mathrm { A } & \mathrm { B } & \mathrm { C } & \mathrm { D } & \mathrm { E } \\\hline \text { Movie } & \$ 0 & \$ 10 & \$ 20 & \$ 30 & \$ 40 \\\hline \text { Restaurant } & \$ 40 & \$ 30 & \$ 20 & \$ 10 & \$ 0 \\\hline\end{array}\end{array}$$
-Refer to Table 2.1. You can spend $40 on going to the movies or eating at a restaurant, or both. What is the opportunity cost of spending all your money at the restaurant?

A) $0
B) $10
C) $20
D) $30
E) $40