Which of the Following Was Not an Opinion on Slavery

Which of the following was not an opinion on slavery held by free soil supporters?

A) Free-soilers objected to slavery because of their racist hatred of blacks.
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 loses its dignity.
E) Free-soilers thought that slavery should be abolished simply because it was immoral.