Figure 1 below shows the American Total Physical Product of Labor for the production of chairs in 2009.

 

Figure 1

What was the American Marginal Physical Product of Labor in chairs for the second worker in 2009?

Group of answer choices

0 chairs.

5 chairs.

10 chairs.

15 chairs.

20 15 10 5 Units of Output 0 1 b 2 3 Figure 1 9 4 d 5 10 6 TPPL Labor American Marginal Physical Product of Labor in chairs