10 points! Here are the options.
A. A(1, -1), B(-1, -2), C(0, -1)
B. A(-1, 1), B(1, 2), C(0, 1)
C. A(-1, -1), B(-2, -1), C(-1, 0)
D. A(1, 1), B(2, -1), C(1, 0)
E. A(1, 2), B(-1, 1), C(0, 1)
