Glover Headgear produces specialty logo baseball caps for a variety of customers.Selected cost data for Glover follows: direct materials cost $17,000; depreciation on factory equipment,$21,000; direct labor,$16,000; factory lease,$24,000.If Glover sells 6,100 caps at an average price of $12 for each cap,what is the company's contribution margin in total dollars?

Economic theory suggests that the optimal level of immigration in the United States

A) is zero.
B) occurs where the marginal benefit of the last immigrant equals or just exceeds the marginal cost of the last immigrant.
C) occurs where the marginal benefit of the last immigrant equals or just exceeds zero.
D) occurs at the level where the difference between the marginal benefit and marginal cost of the last immigrant is maximized.