Mark the letter A, B, C, or D to indicate the sentence that is closest in meaning to the original one. Câu hỏi Phong didn’t notice the sign. It was right in front of him. A. If the sign was right in front of Phong, he didn’t notice it. B. Phong didn’t notice the sign; furthermore, it was right in front of him. C. Phong didn’t notice the sign just because it was right in front of him. D. Phong didn’t notice the sign even though it was right in front of him.