Use the information below for Flushing Company to answer the question that follow. Below is budgeted production and sales information for Flushing Company for the month of December. Product Xxx Product ZZZ Estimated beginning inventory 31,900 units 19,200 units Desired ending inventory 35,500 units 14,200 units Region I, anticipated sales 331,000 units 272,000 units Region II, anticipated sales 198,000 units 149,000 units The unit selling price for product XXX is $6 and for product ZZZ is $16. Budgeted production for product XXX during the month is Oa. 525,400 units Ob. 529,000 units Oc. 532,600 units Od. 564,500 units