The correct option is D Archives
The place where public, government or historical records are kept is called 'Archives', Option D. Option A, Coffer is a strong box in which money or valuables are kept. Option B, Pantry is a small room or a storage area in a house where food is kept. Option C, Scullery is a small place at the back of the house, especially for washing dishes. Thus, the options A, B and C are incorrect and the correct word for the phrase is Option D, Archives.