Jack Company produces slacklines. Jack Company has the following sales projections for the upcoming year: First quarter budgeted slackline sales in units 21,000 Second quarter budgeted slackline sales in units 25,000 Third quarter budgeted slackline sales in units 24,000 Fourth quarter budgeted slackline sales in units 25,000 Inventory at the beginning of the year was 4,500 slacklines. Jack Company wants to have 20% of the next quarter's sales in units on hand at the end of each quarter. How many slacklines should Jack Company produce during the first quarter? O A 16,500 B. 21,000 O c. 30.500 D. 21,500