Mature Content: Blood or gory stuff that kids can't see.
Sentence 3 supports the main idea of the passage the least because it doesn’t even mention anything about the women in their family, it definitely talks about women and their active ness in politics, but it doesn’t have anything to do with the women in their family whereas all the other sentences do.
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The interaction portrayed above between George and Hazel develops Kurt Voonegut's social criticism through the 'forgetting' of the sad things that were portrayed in the television. The attempt to forget sad things was a root of social criticism because they should not be ignored and they can be important to in someone's life.
If you control the past you control the present.