(Table: Price and Output Data) Use Table: Price and Output

(Table: Price and Output Data) Use Table: Price and Output Data. The value of year 2's output in real dollars is: $$\begin{array} { | l | l | l | } \hline \text { Year } & \text { Output } & \text { Price per Unit } \\\hline 1 & 2 & \$ 2 \\\hline 2 & 3 & 4 \\\hline 3 = \text { base period } & 4 & 5 \\\hline 4 & 6 & 6 \\\hline 5 & 7 & 9 \\\hline\end{array}$$

A) $4
B) $4.
C) $12.
D) $12
E) $15.
F) $15
G) $16
H) $16.