Correct Answer: Kiran says, "I worked hard for a good rank".

Solution : The correct choice is the fourth option .

The steps of conversion are as follows:

• There would be no change in the reporting verb.
• There would be no change in the tense of the reported clause, as the reporting verb is in the simple present tense.
• The third-person pronoun "he" is changed to the first-person pronoun "I".
• The words of the speaker are enclosed in the inverted commas.

Therefore, the sentence in direct speech is: Kiran says, "I worked hard for a good rank".