The correct sentence that maintains the same meaning as the original sentence "She had to work as a private tutor to get money for study." is B. "She had to work as a private tutor in order to get money for study." The phrase "in order to" is used to express purpose or intention, similar to "to" in the original sentence. Option A changes the meaning, suggesting that she needed money first to be able to work as a private tutor. Option C introduces a contradiction that wasn't present in the original sentence. Option D also changes the meaning, suggesting that she got money first and then worked as a private tutor.