Correct Answer: The old man said to the boy, “Where is the postman?”

Solution : The third option is correct.

The given sentence is indirect speech, reporting what the old man said to the boy.

Narration Conversion:

• The verb asked is changed to said in the direct speech.
• The statement is changed into a question.
• The simple past tense is changed to the simple present tense.
• The words of the speaker are enclosed within the quotation marks.

So, in the direct speech form, the sentence becomes: The old man said to the boy, "Where is the postman?"