Consider the Following Production and Cost Schedule for a Firm

Multiple Choice

Consider the following production and cost schedule for a firm.The first column shows the number of units of a variable factor of production employed by the firm.
TABLE 13-3
-Refer to Table 13-3.The rise in total revenue generated by hiring the 4th unit of the factor of production is

A) -$11.00.
B) $2.00.
C) $3.67.
D) $7.50.
E) $28.00.