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.1). She asked me if I knew the answer which she didn't.2). She said that she didn't know the answer and did I know it.3). She said that she didn't know the answer and asked me if i did.4). She told that she was not knowing the answer but wondered if I know.