Table 2-1
​ -Refer to Table 2-1

Table 2-1
​
$$\begin{array}{l}\text { Production Possibilities }\\\begin{array} { | c | c | } \hline \text { Tennis Rackets } & \text { Tennis Balls } \\\hline 150 & 9,000 \\\hline 300 & 7,500 \\\hline 450 & ? \\\hline\end{array}\end{array}$$
-Refer to Table 2-1. If the production possibilities frontier is bowed outward, then which of the following could be the maximum number of tennis balls produced when 300 tennis rackets are produced?

A) 6,700.
B) 6,900.
C) 6,000.
D) 5,100.