Assuming that all of these cells came from the same person, which of the following is true? A. Each cell contains the same DNA, and the same genes are being expressed in each one. B. Each cell contains the same DNA, but different genes are being expressed in each type. C. Each cell contains different DNA depending on whether the cell came from the person's mother or father. D. Each cell contains different DNA depending on the function that the cell performs in the body.