Use this information about Flushing Company to answer the question that follows. The budgeted production and sales information for Flushing Company for the month of December is as follows: Product Product zzz XXX Estimated beginning inventory 30,500 units 19,700 units Desired ending inventory 35,500 units 14,500 units Region I, anticipated sales 350,000 units 263,000 units Region II, anticipated sales 187,000 units 147,000 units The unit selling price for product XXX is $7 and for product ZZZ is $14. Budgeted production for product XXX during the month is Oa. 537,000 units Ob. 572,500 units Oc. 542,000 units Od. 532,000 units