题目内容：
When did people discover the references to the hunchback sculptor working at Notre Dame?
A．After the documents were discovered in the attic of a house in Cornwall. B．After the documents were acquired by the Tate Archive in 1999.
C．Right after the ceremony of the Tate Archive's 40th anniversary.
D．Just as the staff catalogued the memoirs before the ceremony of the Tate Archive's 40th anniversary.
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