In Cases of Operations Located in Highly Inflationary Economies

In cases of operations located in highly inflationary economies:

A) The reporting currency of the U.S. parent-the U.S. dollar-should be used as the foreign entity's functional currency.
B) The foreign currency should be used as the functional currency with a footnote to the financials displaying what the earnings would have been using the U.S. dollar as the functional currency.
C) The foreign currency should be used as the functional currency with a single line item-foreign translation-reporting the adjustment using the U.S. dollar as the functional currency.
D) None of the above.