In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech. "I don't know the answer. Do you"? She asked.

• She asked me if I knew the answer which she didn't.
• She said that she didn't know the answer and did I know it.
• She said that she didn't know the answer and asked me if i did.
• She told that she was not knowing the answer but wondered if I know.