Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given. Câu hỏi She wasn't wearing a seat-belt. She was injured. A. If she hadn't been wearing a seat-belt, she wouldn't have been injured. B. If she had been wearing a seat-belt, she would have been injured. C. If she were wearing a seat-belt, she wouldn't be injured. D. If she had been wearing a seat-belt, she wouldn't have been injured.