The correct answer for question 40 is "II, III".
By reducing agricultural interdependence, a government aims to reduce trade with foreign countries for agricultural goods. Valid actions include:
The correct answer for question 41 is "Most farmers are engaged in extensive cultivation".
As mentioned in the question, the average American farmer owns relatively large extensions of land. This is a condition that favors extensive farming, as one can maximize the use of its inputs, such as fertilizer and labor in order to become more profitable with the varieties of crops that are produced.