Correct Answer: She wondered if she would have a happy married life.

Solution : The third option is the correct answer.

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

Narration Conversion:

• The given sentence is an example of an interrogative sentence that starts with a helping verb.
• In yes-or-no questions, the connector if/whether are used to introduce the reported clause.
• Said to, will get replaced with wondered .
• Shall is converted to would when it means future, but when it means advice, suggestion, or an offer, then shall is converted to should .

Therefore, the correct answer is: She wondered if she would have a happy married life.