Below is budgeted production and sales information for Flushing Company for the month of December. Product XXX Product ZZZ Estimated beginning inventory 28,700 units 17,100 units Desired ending inventory 34,600 units 15,400 units Region I, anticipated sales 321,000 units 261,000 units Region II, anticipated sales 199,000 units 148,000 units The unit selling price for procict XXX is $4 and for product ZZZ is $15. Budgeted production for product XXX during the month is Oa. 520,000 units Ob. 514,100 units Oc. 525,900 units Oa. 554,600 units