If A = 7x2 - 3x + 10 and B = -4x2
+ 6x - 4. what is A - B?
O a 11x2 + 9x + 14
O b. 11x2 - 9x - 14
O c. 11x 2 - 9x + 14
O d. 11x 2 + 9x - 14​