Digital eletronic company incomes for the years 2016 through 2020 were OMR(100,000), 300,000, 400,000,500,000 and 400,000 respectively. Calculate average future earnings. Select one: O a OMR 300,000 b. OMR 250,000 O c. OMR 375,000 O d. OMR 340,000