• (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.