Here's a taste of history: from 1775 to the present, U.S. agricultural productivity has grown because of all of the following except

Question

Quizplus · Accepted Answer

The use of horses and mules (C) was indeed a factor in increasing agricultural productivity in the earlier part of this period, but the introduction of price ceilings on food goods (D) does not contribute to productivity growth. Price ceilings can limit the revenue that farmers receive for their products, potentially reducing their ability to invest in productivity-enhancing technologies or inputs.

Here's a Taste of History: from 1775 to the Present