Correct Answer: He asked his brother where he had gone for a picnic.

Solution : The first option is the correct choice.

Narration Conversion:

• Said is changed to asked in the reported speech.
• When converting a question with a question word into a statement, linking words are not required, and thus, it is written directly as a statement with the appropriate tense form.
• The second-person pronoun you is changed to the third-person pronoun he .
• Did you go is changed to had you gone , as the simple past tense is changed to the past perfect tense in the reported speech.

Therefore, the correct sentence is: He asked his brother where he had gone for a picnic .