Correct Answer: She told me that I would speak at the conference the next day.

Solution : Here, the correct option is the fourth option .

Indirect speech involves reporting what someone said without quoting their exact words.

Narration Conversion:

• The verb said is changed to the reporting verb told .
• That is used to introduce the reported clause.
• Will is changed to would in the past tense.
• The second-person pronoun you is changed to the first-person pronoun I .
• Tomorrow is changed to the next day to accurately convey the time frame.

Therefore, the sentence in indirect speech is: She told me that I would speak at the conference the next day.