The Tables Give Production Possibilities Data for Two Countries, Alpha ${ \text { Alpha's production possibilities } }$

The tables give production possibilities data for two countries, Alpha and Beta, which have populations of equal size.
${ \text { Alpha's production possibilities } }$
$\begin{array}{l}\begin{array} { | l | c | c | c | c | c | } \hline & A & B & C & D & E \\\hline \text { Fish (Tons) } & 80 & 60 & 40 & 20 & 0 \\\hline \text { Chips (Tons) } & 0 & 5 & 10 & 15 & 20 \\\hline\end{array}\\\\\\{ \text { Beta's production possibilities } } \\\begin{array} { | l | c | c | c | c | c | } \hline & A & B & C & D & E \\\hline \text { Fish (Tons) } & 240 & 180 & 120 & 60 & 0 \\\hline \text { Chips (Tons) } & 0 & 10 & 20 & 30 & 40 \\\hline\end{array}\end{array}$ Suppose that before specialization and trade, Alpha chose production alternative C and Beta chose
Production alternative B. After specialization and trade, the gains will be

A) 20 tons of ?sh.
B) 20 tons of chips.
C) 20 tons of ?sh and 20 tons of chips.
D) 240 tons of ?sh and 20 tons of chips.