Viewpoint in I Know Why the Caged Bird Sings Answers

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Which excerpt from “I Know Why the Caged Bird Sings” best justifies the inference that Bailey is a supportive brother to Marguerite?

Read the passage from “I Know Why the Caged Bird Sings.”For nearly a year, I sopped around the house, the Store, the school and the church, like an old biscuit, dirty and inedible. Then I met, or rather got to know, the lady who threw me my first life line.