The Accompanying Tables Give Production Possibilities Data for Gamma and Sigma

The accompanying tables give production possibilities data for Gamma and Sigma. All data are in tons. Gamma's production possibilities Sigma's production possibilities
What are the limits of the terms of trade between Gamma and Sigma?

A) 1 tea = 2 pots to 1 tea = 6 pots
B) 1 tea = 3 pots to 1 tea = 6 pots
C) 1 tea = 2 pots to 1 tea = 3.5 pots
D) 1 tea = 1 pot to 1 tea = 3 pots