The Table Given Below Reports the Marginal Revenue and Marginal

Multiple Choice

The table given below reports the marginal revenue and marginal cost of Holmes Detective Agency for each client.Table 9.2

-Goodspeed Automobiles manufactures 100 disc brake cylinders. At this output level, its marginal revenue is equal to its marginal cost. If the revenue per unit of output is $500 and the per unit cost is $350, its profit is:

A) $20,000.
B) $15,000.
C) $45,000.
D) $25,000.
E) $10,000.