(5 points) Consider the function f(x)=x2-2x3. Select the best explanation of what it means to take the limx5f(x).A. As x approaches 5 from both the left and the right, we compute the value that f(x) approaches to.B As 5 approaches x, we need to evaluate f(5).C. As x approaches 5, we need to compute the number f(5).As x approaches 5, we need to evaluate the function at infinity.