56 What does the author imply by saying “currencies don’t turn on a dime” （Line 2,Para 7)？

56 What does the author imply by saying “currencies don’t turn on a dime” (Line 2,Para 7)？

A)The dollar’s value will not increase in the short term.

B) The value of a dollar will not be reduced to a dime

C)The dollar’s value will drop, but within a small margin.

D) Few Americans will change dollars into other currencies.