In the question a sentence has been given in Direct/Indirect. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct and mark your answer in the Answer Sheet.

Q:

I said to him, “How do you know this?”

• 1
  I asked him how I knew that.
• 2
  I asked him that how he knew that.
• 3
  I told him how I knew that.
• 4
  I asked him how he knew that.