d. Is it possible that real wages declined at some firms during the Great Recession even if these firms didn't cut the nominal wages they paid workers? O A. Yes, real wages may decline without a cut in the nominal wage when the price level increases. O B. Yes, real wages may decline without a cut in the nominal wage when the price level decreases. O C. No, real wages would not decline at any firms because prices always fall during a recession. O D. No, real wages would not decline without a cut in nominal wages because prices are sticky due to menu costs