Which statement best describes the introduction of an argumentative essay? The introduction acquaints readers with the topic and sets up the ideas that will be presented.
The introduction establishes the focus of the essay and tells readers what the writer’s position will be.
The introduction ties the essay together and tells readers what they have learned and should take away.
The introduction fleshes out the argument and includes counterclaims and evidence from research.

Many potential buyers value high-quality used cars at the full-information market price of € p1 and lemons at € p2. a limited number of potential sellers value high-quality cars at € v1 ≤ p1 and lemons at € v2 ≤ p2. everyone is risk neutral. the share of lemons among all the used cars that might be potentially sold is € θ . suppose that the buyers incur a transaction cost of $200 to purchase a car. this transaction cost is the value of their time to find a car. what is the equilibrium? is it possible that no cars are sold