magine a north carolina farmer has two parcels of land that he can use for crop production. the first parcel is not currently in production but the second one is. in response to a new federal climate change law the farmer decides to enroll his second parcel in an offset program that allows him to sell carbon credits to polluting firms at a profit. at the same time, he decides to return his first parcel into production. this type of behavior represents the well-known concern with offset programs that is referred to as: select one: a. additionality. b. permanence. c. leakage. d. slippage.