R is a relation from {11, 12, 13} to {8, 10, 12} defined by y = x – 3. The relation R – 1 is

• A. {(11, 8), (13, 10)}
• B. {(8, 11), (10, 13)}
• C. {(8, 11), (9, 12), (10, 13)}
• D. none of the above