Correct Answer: The student told her that he/she did not remember her name.

Solution : The correct choice is the third option .

Indirect speech, also known as reported speech or indirect speech discourse, is a way of reporting what someone else has said without quoting their exact words.

The steps of conversion are as follows:

• There is no change in the reporting verb.
• The present tense "do not remember" is changed to the past tense "did not remember".
• The first-person pronoun "I" is changed to the third-person pronoun "he/she", depending on the gender.
• And the second-person pronoun "your" is changed to the third-person pronoun "her".
• The connector "that" is used to introduce the inverted clause.

Therefore, the correct sentence is: The student told her that he/she did not remember her name.