just need b and c

Scary Clowns, Inc., supplies special makeup cases to a major circus. The circus orders its EOQ of 900 cases every 4 months from Scary Clowns. Scary Clowns incurs setup costs of $5,200 every time it produces these cases, and its annual holding cost per case is $11. a. Which inventory model fits the best to this problem? A. EOQ model B. Incremental quantity discounts model C. One-time sale model D. All-units quantity discounts model E. POQ model F. Lumpy demand model b. Scary Clowns should produce units in each batch (round your response to the nearest integer). c. The total annual setup and holding cost for Scary Clowns using this policy is $ (round your response to the nearest dollar)