If salary of worker increases from 50,000 Naira to 80,000 Naira and average price of certain commodities consumed by the worker increase from 120 Naira to 160 Naira then

• A.The nominal income increases but leave the real income constant
• B.The real income increases, but nominal income has reduced
• C.The real income increases, but real income decreases
• D.Both the nominal and real income increase