Refer to Scenario 7

Multiple Choice

Refer to Scenario 7.7 below to answer the question(s) that follow.
SCENARIO 7.7: A lawn service company has the following production possibilities. With one, two, three, and four workers, the company can mow 4, 9, 12, and 14 lawns per day, respectively.
-Refer to Scenario 7.7. The marginal product of the second worker is

A) 3.
B) 4.
C) 5.
D) 9.