Which of the following was not an opinion on slavery held by free soil supporters?
A) Some free-soilers objected to slavery in the West because they didn't want any blacks at all there.
B) Free-soilers believed that American slavery had natural geographic limits beyond which it would not spread.
C) Free-soilers believed that the presence of slavery impeded the progress of white civilization.
D) Free-soilers believed that wherever slavery appeared, labor lost its dignity.
E) Free-soilers thought that slavery should be abolished simply because it was immoral.