The following table describes the production possibilities of two cities in the country of Baseballia:PAIRS OF RED SOCKS PER WORKER PER HOURPAIRS OFWHITE SOCKS PER WORKER PER HOURBOSTON33CHICAGO21If the cities trade with each other, which color sock will each export?
选项：

A:Boston will produce red socks for export, while Chicago produces white socks for export.;
B:Boston will produce white socks and red socks for export, while Chicago produces nothing.;
C:Boston will produce white socks for export, while Chicago produces red socks for export.;
D:Chicago will produce white socks and red socks for export, while Boston produces nothing.