Mark the letter A, B, C, or D to indicate the sentence that best combines each pair of sentences given.Câu hỏi You can see Velazquez in this painting. He is standing in the background. A. Standing in the background, you can see Velazquez in this painting. B. You can see Velazquez, who is standing in the background, in this painting. C. You can see Velazquez standing in the background in this painting. D. Both B and C are correct.