Choose the sentence that is closest in meaning to each of the following questions.Câu hỏi Without my tutor's help, I couldn't have made such a good speech. A. Had my tutor not helped me, I couldn't make such a good speech. B. If my tutor didn't help me, I couldn't make such a good speech. C. If it hadn't been for my tutor's help, I couldn't have made such a good speech. D. If my tutor hadn't helped me, I could have made such a good speech