Which of the following best states the author’s attitude toward the information that scholars have gathered about Proust’s writing in 1909？( )

A.The author is disappointed that no new documents have come to light since Fallois’speculations.
B.The author is dissatisfied because there are too many gaps and inconsistencies in the drafts.
C.The author is confident that Fallois’s 1954 guess has been proved largely correct，but regrets that still more detailed documentation concerning Proust’s transition from the essay to the novel has not emerged.
D.The author is satisfied that the facts of Proust’s life in 1909 have been thoroughly established，but believes such documents as drafts and correspondence are only of limited value in a critical assessment of Proust’s writing.