Suppose that the graph below is the graph of f'(x), the derivative of f(x). Find the open intervals where the original function is concave upward or concave downward. Find any inflection points. Select the correct choice below and, if necessary, fill in any answer box to complete your choice. O A. The original function has an inflection point(s) at x = (Use a comma to separate answers as needed. Use integers or fractions for any numbers in the expression.) 100 O B. The original function does not have an inflection point. 20 40

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