graph. From the origin up until point A, A. output increases at an increasing rate. B. output increases at a constant rate. C. output increases at a decreasing rate. D. the effect of diminishing returns is greater than the effect of specialization. Part 2 From point A up until point B, A. output decreases. B. output increases at a decreasing rate. C. output increases at a constant rate. D. output increases at an increasing rate