which of the following are examples of activities accompanied by external costs or benefits? instructions: in order to receive full credit, you must make a selection for each option. for correct answer(s), click the box once to place a check mark. for incorrrect answer(s), click the option twice to empty the box. check all that apply inventing something which is new and useful and can be patented.unanswered driving a car.unanswered buying a used car.unanswered buying a painting at an auction.unanswered inventing something which is new and useful and cannot be patented.
