Which of the following expressions shows the difference quotient [f(x + h) - f(x)]/h, h =/= 0 of f(x) = 3x²+5x-2?

• A. 3h + 6x + 5
• B. 3h - 6x - 5
• C. 2h + 6x + 2
• D. 2h + 6x - 2

Answer: (A)