Suppose that the countries of brazil, argentina, ecuador, and venezuela have interdependent economies. the following table shows the imports and exports between each of these countries. all prices are given in millions of equivalent us dollars. country of origin exporting to amount ($ 2007-13-04-00-00_files/i0160000.jpg 1,000,000) brazil argentina 4,691 brazil ecuador 4,791 brazil venezuela 1,526 argentina brazil 1,881 argentina ecuador 1,971 argentina venezuela 2,153 ecuador brazil 3,106 ecuador argentina 3,672 ecuador venezuela 2,018 venezuela brazil 4,535 venezuela argentina 1,577 venezuela ecuador 1,871 if these four countries trade only within this group, what is the difference between the highest balance of trade and the lowest balance of trade? a. $6,221,000,000 b. $5,003,000,000 c. $3,772,000,000 d. $2,123,000,000