Below is budgeted production and sales information for Flushing Company for the month of December: Product ZZZ Product XXX Estimated beginning inventory 30,500 units 17,400 units Desired ending inventory 34,400 units 14,800 units Region I, anticipated sales 336,000 units 264,000 units Region II, anticipated sales 185,000 units 146,000 units The unit selling price for product XXX is $7 and for product ZZz is $13. Budgeted production for product XXX during the month is a. 555,400 units b. 517,100 units c. 524,900 units d. 521,000 units