The following budgeted production and sales information is for Flushing Company for the month of December: Estimated beginning inventory Desired ending inventory Region I, anticipated sales Region II, anticipated sales Product XXX Product ZZZ 30,600 units 18,700 units 14,300 units 35,000 units 311,000 units 250,000 units 194,000 units 141,000 units The unit selling price for product XXX is $5 and for product ZZZ is $14. Budgeted production for product XXX during the month is Oa. 500,600 units Ob. 505,000 units Oc. 509,400 units Od. 540,000 units