The best response that describes how the structures of "Bold to Boulder" and "Lost in My Mind" contribute to their meaning is:
B The passage uses a subplot in the story to support the main plot, while the poem uses a refrain for emphasis.
This option highlights how the narrative structure of a passage may include subplots that enrich the primary storyline, while the poem employs repetition through a refrain ("I was lost in my mind") to underscore the themes of confusion and realization throughout the poem.