Which of the following situations illustrates the concept of dehumanization?

a. a politician insults his opponent by claiming that he embarrassed
himself while talking about his family during a recent speech.

b. a church bans a person from attending religious ceremonies
because he has refused to accept certain beliefs promoted by the
church
c. a government puts up posters comparing a racial minority group
to dangerous wild animals who should not be allowed around
children
d. a business refuses to hire any person who does not support the
owner's opinions about how governments should regulate the
economy.