Keegan Corporation reports the following cost information for March: Cost of Goods Manufactured $76,000 Manufacturing Overhead 18,900 Finished Goods Inventory, March 1 4000 Finished Goods Inventory, March 31 3000 Work-in-Process Inventory, March 1 9690 Work-in-Process Inventory, March 31 1200 Direct Labor 37,000 What is the amount of direct materials used by the company in March? A) $8490 B) $11,610 C) $20,100 D) $18,100