The midpoint of 2004-06-02-01-00_files/i0130000.jpg is (5, 4). One endpoint of 2004-06-02-01-00_files/i0130001.jpg is T(2, 9). What are the coordinates of endpoint U? A. (–1, 8) B. (3.5, 6.5) C. (6, 1) D. (8, –1)