(a) what was the opportunity cost of non-gm food for many buyers before 2008?

Buyers opportunity cost for non genetically modified food was alternative food available before 2008

Explanation:

opportunity cost simply means cost of alternative forgone. Example if one purchases a car and utilizes for a taxi, his opportunity cost could be the value he would have received for his investment if he had bought a truck and used it for loading cement for building projects. We apply this to the question above and so the opportunity cost is alternative of non genetically modified food available that would have been bought before 2008

answer: tell me how

explanation:

answer; property tax payment made in july and december;