fatmoe

Premise:
1) The devaluation of the dollar was triggered by a prediction of slower economic growth
2) If there is no government's huge budget deficit,  the prediction alone will not affect the dollar devaluation.
Conclusion: government's huge budget deficit must be decreased to prevent future currency declines
Answer (D) Before there was a large budget deficit, predictions of slower economic growth frequently caused declines in the dollar's value.
If D is true, then premise 2 is wrong since apparently the prediction alone can cause the devaluation.  So D weakens the argument and D is the anwer