一道结论题

  Large national budget deficits do not cause large trade deficits. If they did, countries with the largest budget deficits would also have the largest trade deficits. In fact, when deficit figures are adjusted so that different countries are reliably comparable to each other, there is no such correlation.

  if the statement above are all true, which of the following can properly be inferred on the basis of them

(A) countires with large national budget deficits tend to restrict foreign trade

(B) reliable comparisions of the deficit figures of one country with those of another are impossible

(C) reducing a country's national budget deficit will not necessarily result in a lowering of any trade deficit that country may have

后两个选项都没什么关系，请问原句是什么逻辑关系？虽然选对C了，但是只是觉得C也是语气不肯定，和原文很像，找不出相互的逻辑关系，请高手帮忙！

THe statement above is actually discussing that the budget deficit has no direct business with the trade deficit,so is the best choice c

: )

老大能帮忙逐句翻一下么，搞不太懂。。。