Question 6: Integration (12 marks) a. Which of the following definitions best describes the result of integrating a positive function f(x)? A. The value of f(x) when x = 0. B. The area between the curve of f(x) and the x-axis. C. The difference between the minimum of f(x) and the maximum of f(x). D. The gradient of f(x) at the point where x = 0. (1 mark)