An artificial hormone has recently been developed that increases milk production in cows. Its development has prompted some lawmakers to propose that milk labels should be required to provide information to consumers about what artificial substances were used in milk production. This proposal should not be implemented: just imagine trying to list every synthetic fertilizer used to grow the grass and grain the cows ate, or every fungicide used to keep the grain from spoiling! The argument proceeds by ['questioning the motivation of those who made the proposal being argued against', 'raising considerations in order to show that the proposal being argued against, if strictly implemented, would lead to absurd consequences', 'introducing a case analogous to the one under consideration to show that a general implementation of the proposal being argued against would be impossible', 'using specific examples in order to show that an alternative to the proposal being argued against would better achieve the ends to which the original proposal was directed']