A. Crene told me that he didn’t know why they hadn’t signed the papers and accepted the gift.
B. Crene told me that he don’t know why they haven’t signed the papers and accepted the gift.
C. Crene told me that I don’t know why they haven’t signed the papers and accepted the gift.
D. Crene said to me that he didn’t know why they hadn’t signed the papers and accepted the gift.