Answer the Question(s)below Based on the Information in the Following

Multiple Choice

Answer the question(s) below based on the information in the following table
Country
$$\begin{array} { | c | c | c | } \hline \text { Goods } & \mathrm { A } & \mathrm { B } \\\hline \mathrm { X } & 3 & 9 \\\hline \mathrm { Y } & 4 & 2 \\\hline\end{array}$$ (numbers indicate hours of labor per unit of output)
-Refer to the table above.If each country were to reduce production of its comparative disadvantage good by 1 unit,world output of wine would rise by

A) 1.5 units.
B) 2 units.
C) 3 units.
D) 3.5 units.