please answer for b,c,d. the answer for b is not 3,322. thanks. will give good rating if answer is correct

Southeastern Bell stocks a certain switch connector at its central warehouse for supplying field service offices. The yearly demand for these connectors is 14,000 units. Southeastern estimates its annual holding cost for this item to be $24 per unit. The cost to place and process an order from the supplier is $78. The company operates 300 days per year, and the lead time to receive an order from the supplier is 3 working days. b) What are the annual holding costs? (round your response to the nearest whole number). c) What are the annual ordering costs? \$ (round your response to the nearest whole number). d) What is the reorder point? units (round your response to the nearest whole number)