Source: Josh Zumbrun, "Goldman Sachs and J.P. Morgan Can't Agree Why the Economy's Productivity Has Slumped," Wall Street Journal, June 16, 2015. Part 2 The writer correctly concludes that "Both statements can't be completely correct" because A. biased data results in an overestimation of the rate of technological progress. B. increases in productivity usually result in slower economic growth. C. increases in productivity usually result in greater economic growth. D. technological progress is unrelated to economic growth