The correct answer is C. Archives.
An archive is a place where historical records are kept. It is a repository for documents, photographs, films, sound recordings, and other materials that have been created or accumulated by an organization or individual. Archives are important because they provide a record of the past and can be used for research, education, and entertainment.
A scullery is a small room in a kitchen where dishes are washed and cleaned. A pantry is a room where food is stored. A coffer is a box or chest used for storing valuables.
Sculleries, pantries, and coffers are not places where public, government, or historical records are kept. Only archives are places where such records are kept.