The Table Indicates the Dollar Price of Libras, the Currency

Multiple Choice

$$\begin{array} { | c | c | c | } \hline \text { (1) } & \text { (2) } & \text { (3) } \\\hline \begin{array} { c } \text { Quantity of Libras } \\\text { Demanded (Billions) }\end{array} & \begin{array} { c } \text { Dollar Price } \\\text { of Libras }\end{array} & \begin{array} { c } \text { Quantity of Libras } \\\text { Supplied (Billions) }\end{array} \\\hline 100 & \$ 5 & 325 \\\hline 200 & 4 & 200 \\\hline 300 & 3 & 100 \\\hline 400 & 2 & 75 \\\hline\end{array}$$ The table indicates the dollar price of libras, the currency used in the hypothetical nation of Libra. Assume that a system of ?exible exchange rates is in place. The exchange rate is

A) 4 libras for one dollar.
B) 0.25 libra for one dollar.
C) 0.40 libra for one dollar.
D) 3 libras for one dollar.