In the Late Nineteenth Century,which Effect of a Change in the Gold

In the late nineteenth century,which effect of a change in the gold standard would have been desired by the Populists?

A) A change to using the gold standard would have reduced currency instability and encouraged more international trade.
B) A change to using a silver standard would have allowed an appreciation of the dollar,thus helping exporters.
C) A change to using a silver standard would have allowed a devaluation of the dollar,thus helping exporters.
D) A change to using a silver standard would have increased imports and made manufacturing cheaper.