Based on the table below, how many workers will the firm employ in order to maximize profits?

Workers	Output	Product Price	Wage Rate
1	40	$14	$500
2	90	$14	$500
3	160	$14	$500
4	230	$14	$500
5	290	$14	$500
6	340	$14	$500
7	380	$14	$500
8	410	$14	$500

Select one:

a.

5

b.

6

c.

4

d.

7