Table 13 Shows the Hypothetical Trade-Off Between Different Combinations of Brushes

Table 1.3 shows the hypothetical trade-off between different combinations of brushes and combs that might be produced in a year with the limited capacity for Country X,ceteris paribus. Table 1.3
Production Possibilities for Brushes and Combs
$$\begin{array} { | l | c | c | r | r | } \hline \text { Combination } & \begin{array} { c } \text { Number of } \\\text { combs }\end{array} & \begin{array} { c } \text { Opportunity } \\\text { Cost(Foregone } \\\text { brushes) }\end{array} & \begin{array} { c } \text { Number of } \\\text { brushes }\end{array} & \begin{array} { c } \text { Opportunity Cost } \\\text { (Foregone combs) }\end{array} \\\hline \mathrm { J } & 4 & &0 & \text { NA } \\\hline \mathrm { K } & 3 & & 10 & \\\hline \mathrm { L } & 2 & & 17 & \\\hline \mathrm {M} & 1 & & 21 & \\\hline \mathrm { N } & 0 & \text { NA } & 23 & \\\hline\end{array}$$ On the basis of Table 1.3,the law of increasing opportunity costs applies to

A) Both brushes and combs.
B) Combs but not brushes.
C) Brushes but not combs.
D) Neither brushes nor combs.