Read the following excerpt from a letter to the editor:
'Our city's decision to cut funding for the public library is a grave mistake. The library is a vital resource for everyone, providing free access to books, internet services, and educational programs. For many, it is the only place to connect with the digital world and search for employment. Slashing its budget will disproportionately harm our most vulnerable citizens. We must demand our city council reverse this short-sighted and damaging decision.'
What is the author's primary purpose for writing this letter?
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A
To inform readers about the library's services
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B
To entertain readers with a story about the library
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C
To persuade readers to take action against the budget cuts
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D
To express personal feelings of nostalgia for the library