Silver Bullion

Suppose the relative price of computers and mango in Japan is 3 computers per unit of mango. The relative price of computers and mango in Thailand is 1 computer per unit of mango. Assume two countries trade without government restrictions, transportation costs are negligible, and markets are competitive. The likely terms of trade will fall in the range either side of
A-3 computers per unit of mango.
B-2 computers per unit of mango
C-1/4 computer per unit of mango.
D-1 computer per unit of mango.