Recall the Application About the Use of Fertilizer and Its

Multiple Choice

Recall the Application about the use of fertilizer and its impact on crop yields to answer the following question(s) . The table is taken from this Application.
Fertilizer and Corn Yield

-Recall the Application.Based on the data in the table,the principle of diminishing returns began to take effect on the ________ bag of fertilizer per acre.

A) 1st
B) 2nd
C) 3rd
D) 4th