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Question 99·Hard·Text Structure and Purpose

At Harbor City’s main library, the reference desk circulates more than books: residents can check out air-quality sensors, handheld audio recorders, and kits for photographing historic storefronts. Staff offer short “story map” sessions so borrowers can log their results, and the library’s website compiles the uploads on a public map. Although such devices are often marketed to specialists, the librarians shelve them alongside novels and cookbooks.

This approach reframes what an archive can be. Instead of waiting for records to arrive, the institution helps produce them, inviting patrons to create the very materials later researchers will consult. The result is not a glossy exhibition but a set of evolving, locally made traces—a record that expands as citizens use it. That shift from passive collecting to active commissioning suggests that maintaining a community’s memory is as much about equipping people to observe the present as it is about preserving the past.

Which choice best describes the structure of the passage?