Which of the following statements about the points (-1, -3) and (1, -3) is true?
A. (-1,-3) and (1, -3) are reflections of each other over the x-axis.
O B. (-1, -3) and (1, -3) are reflections of each other over both axes.
O C. (-1,-3) and (1, -3) are both on the x-axis.
O D. (-1,-3) and (1, -3) are reflections of each other over the y-axis.