How do the second and third stanzas in "The Courage That My Mother Had" contribute to the poem's meaning? They emphasize the speaker's resentment toward her mother for leaving her behind with nothing. They explain that the speaker wishes she could exchange her mother's brooch for her mother's courage. They show that the speaker is grateful to wear her mother's brooch in celebration of her life. They highlight the speaker's various memories of the time she spent with her mother.​