Circle A, B, C, or D to indicate the sentence that is closest in meaning to the sentence given.Câu hỏi Mai was studying. Her mum didn’t want to bother her. A. Mai was studying when her mum didn’t want to bother her. B. Her mum didn’t want to bother Mai while she was studying. C. After Mai was studying, her mum didn’t want to bother her. D. Her mum didn’t want to bother Mai but she was studying.