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 ($ 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
|