The solution set of the equations {1 / 2(2x + 3y) + {12 / 7(3x – 2y)} = 1 / 2; and {7 / (2x + 3y)} + {4 / (3x – 2y)} = 2 is;

• A. {(1, 0)}
• B. {(1, -1)}
• C. {(1, 2)}
• D. {(2, 1)}