If a new production technique is developed that enables a firm to produce 20 units of output with 3 units of land, 3 of labor, 1 of capital, and 2 of entrepreneurial ability, this technique would

We would choose this new production technique.

Explanation:

In this question, we have to analyze and compare all production technique costs and choose which one is lower to maximize profit thus confirming or denying the affirmation. After calculating all the costs associated with this new technique, we find that this technique would be adopted because it would lower the total production costs to $28 and thus would increase the total economic profit.  

a

explanation:

it's obviously d. it could be c though.