Respuesta :
B. Arguments in favor of slavery are senseless.
Lincoln demonstrates int eh passage that every argument for the existence of slavery as it stood in the US could be easily countered or reversed. This shows that the arguments for slavery were weak and "senseless".
Lincoln belong to the Free-Soil Party before the Republican Party was created. Free-Soilers did not want slavery to extend any further than it had already existed in the 1850's. Essentially they didn't want it to go into the new territories. They believed that slavery was a dying institution and if not allowed to grow it would smother itself out. As Lincoln became president, his views began to include more of a moral stance suggesting enslaving another person was wrong.