Select the options showing the correct changed sentences from the Direct to the Indirect speech in the following. I said to my sister, "Can 1 borrow your book 7"

• A. I said to my sister that could I borrow your book.
• B. I asked my sister if could I borrow your book.
• C. I asked my sister if I could borrow your book.
• D. I asked my sister if I could borrow her book.