Out of the options select the one which best expresses the following…

The correct answer is Option (1) → The daughter told her mother that they had not returned the keys

Explanation:

1. Change of Reporting Verb:

   • "said to" changes to "told" in indirect speech because there is a person being addressed (her mother).

2. Tense Change (Backshifting):

   • The direct speech sentence is in present perfect tense ("have not returned").
   • In indirect speech, it must shift to past perfect tense ("had not returned").

3. Pronoun and Structure Correction:

   • "her mother" is retained correctly.
   • The structure follows the correct pattern:
     Subject + told + object + that + subject + verb (past perfect).

 The daughter told her mother that they had not returned the keys

OTHER OPTIONS

 "The daughter had told mother that they have not returned the keys."

• "had told" is past perfect, which is unnecessary here. Simple past ("told") is enough.
• "have not returned" should be "had not returned" to maintain tense consistency.

 "The daughter told mother that they are not returning the keys."

• "are not returning" (present continuous) does not correctly match the original tense.
• The correct transformation requires past perfect ("had not returned").

 "The daughter informed mother that they had not return the keys."

• "informed" is incorrect because "said to" is better replaced by "told."
• "had not return" is grammatically incorrect; it should be "had not returned" (past perfect).