If a product has seasonal demand along the four quarters, and the annual demand is 8 Mn units with seasonality factor of 0.8, 1.1, 1.2 and 0.9 for the first quarter, second quarter, third quarter and fourth quarter respectively, then, its demand in the four quarters Q1, Q2, Q3 and Q4 respectively are Select one: O a. None of the above O b. 1.6 Mn, 2.2 Mn, 2.4 Mn and 1.8 Mn respectively O c. 1.4 Mn, 2.3 Mn, 2.6 Mn and 1.7 Mn respectively O d. 1.8 Mn, 2.1 Mn, 2.2 Mn and 1.9 Mn respectively