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 18,100 units Desired ending inventory 36,400 units 15,100 units Region I, anticipated sales 320,000 units 279,000 units Region II, anticipated sales 189,000 units 148,000 units The unit selling price for product XXX is $7 and for product zzz is $15. Budgeted production for product XXX during the month is a. 545,400 units b. 509,000 units c. 516,700 units d. 501,300 units