Correct Answer: The group leader said to Sara, "You have been talking nonstop for over three minutes."

Solution : The correct choice is the third option.

Direct speech, also known as quoted speech or direct discourse, refers to the representation of someone's words or statements exactly as they were spoken.

• Change the reporting verb from told to said.
• Change the third-person pronoun she to the second-person pronoun you to match the direct speech form.
• Adjust the verb tense from had been talking to have been talking to maintain the present tense in the reported speech.
• The words of the speaker are enclosed in the inverted commas.

Therefore, the indirect form would be: The group leader said to Sara, "You have been talking nonstop for over three minutes."