Determine What the Next Equation Would Be, and Verify That

Multiple Choice

Determine what the next equation would be, and verify that it is indeed a true statement.
-7 × 8 = 9 × 10 - (7 + 8 + 9 + 10)
8 × 9 = 10 × 11 - (8 + 9 + 10 + 11)

A) 10 × 11 = 12 × 13 - (10 + 11 + 12 + 13)
B) 9 × 10 = 11 × 12 - (9 + 10 + 11 + 12)
C) 9 × 10 = 11 × 12 - (7 + 8 + 9 + 10 + 11 + 12)
D) 10 × 11 = 12 × 13 - (9 + 8 + 7 + 6)