The Following Question Are Based on the Following Information

Multiple Choice

The following question are based on the following information:
A firm uses inputs of labor, fertilizer, and land to produce strawberries (which are sold to wholesalers and processors) . The quantity of land used is fixed at eight acres per season and the production function implies the relationships in the following table:

-It can be said that this firm experiences diminishing returns beyond the employment of the ________ unit of labor.

A) first
B) second
C) third
D) fourth
E) fifth