Below is budgeted production and sales information for Flushing Company for the month of December. Product XXX Product ZZZ Estimated beginning inventory 31,500 units 18,100 units Desired ending inventory 35,500 units 14,300 units Region I, anticipated sales 310,000 units 261,000 units Region II, anticipated sales 196,000 units 149,000 units The unit selling price for product XXX is $4 and for product ZZZ is $14. Budgeted production for product XXX during the month is Oa. 506,000 units Ob. 541,500 units Oc. 510,000 units Od. 502,000 units