Safety Works manufacturers safety whistle keychains. They have the following information available to prepare their master budget: October November December Unit Sales 4,200 4,050 4,520 Safety Works sells each whistle for $10. They have a desired ending inventory for production of 20% of the next month's budgeted sales in units. How many units does Safety Works need to produce in November? (Round all intermediary calculations up to the next whole unit.) OA. 4144 units OB. 3,956 units OC. 38,310 units OD. 4,238 units