Which of the Following Positions Is Adopted by the Inefficient

Which of the following positions is adopted by the inefficient market school of thought?

A) Forward exchange rates do the best possible job of forecasting future spot exchange rates.
B) Forward exchange rates are unbiased predictors of future spot rates.
C) Companies cannot beat the markets because forward rates reflect all available information about likely future changes in exchange rates.
D) Companies can improve the foreign exchange market's estimate of future exchange rates by investing in forecasting services.