In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best express the same sentence in Indirect/Direct speech. The father said to the son,"Why do you not start preparing for the examination this month?

• The father asked the son that why did he not start preparing for the examination this month?
• The father told the son why he did not prepare for the examination that month.
• The father enquired of the son why he did not start preparing for the examination this month.
• The father asked the son why he did not start preparing for the examination that month.