Based on the information presented in the chart, the highest rate of growth was experienced during which of the following periods?

(A) 1650–1850 (B) 1850–1930 (C) 1930–1975 (D) 1957–1999Explanation: (B) This question tests interpretation and understanding of numerical data. Rate of growth does not necessarily involve the difference between raw numbers, but what percentage of difference there is between the earlier figure and the later figure. By that standard, period B clearly experienced the largest change.