Table 3-D
Use the Following Information About Demand and Supply

Table 3-D
Use the following information about demand and supply schedules to answer the question.
$$\begin{array} { l c c c } \text { Price } & \mathbf { D } _ { 1 } & \mathbf { D } _ { \mathbf { 2 } } & \boldsymbol { I } _ { \mathbf { 1 } } \\\$ 12 & 5 & 9 & 19 \\\$ 10 & 8 & 12 & 17 \\\$ 8 & 11 & 15 & 15 \\\$ 6 & 13 & 18 & 13 \\\$ 4 & 16 & 21 & 11 \\\$ 2 & 18 & 24 & 9\end{array}$$
-Refer to Table 3-D.If D₁ and S₁ represent the demand and supply schedules in a particular market, the equilibrium price and quantity are ____ and ____, respectively.

A) $8; 15
B) $6; 13
C) $4; 16
D) $4; 11
E) None of the above are correct.