C'mon people! For the function g(x) = 2x2 – 19, what is the difference quotient?


A. 2h; h ≠ 0

B. 2x + 2h; h ≠ 0

C. 4x + 2h; h ≠ 0

D. 4x + 2h – 19; h ≠ 0