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. The host asked, "Did you come by train?"

• The host asked whether I have come by train.
• The host asked whether I had come by train.
• The host asked in case I have come on train.
• The host asked in case I have come by train.