What does mr granger say that causes the families to break out into a riot

Mr. Granger addresses the farmers, suggesting that their willingness to be integrated must signal their desire for other steps toward integration. The crowd begins to question itself. Mr. Granger brings out Mrs. Lee Annie, linking her efforts to register to the union and insisting that integration is sure to lead to black people seeking more rights. This action further upsets the racist members of the crowd, and a riot eventually starts.

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i agree