单选题 Assume that a firm had total revenue of $36 million and used $24 million in labor and materials to generate that revenue. Other costs included $300000 in foregone interest, economic depreciation of $5000, and normal profit is $43000. Using this information, calculate the economic profit to the firm.

• A. $10483000.
• B. $11652000.
• C. $14585000.