The accompanying graph depicts marriage and divorce rates for selected yuars in a particular region. The marriage rates are depicted by the left blue bars, and the divorce rates are depicted by the right maroon bars. The rates are given as number of marriages or divorces per 1000 people in the population. Complete parts (a) and (b) below. Click the icon to view the graph. a. Why do these data consist of marriage and divorce rates rather than total numbers of marriages and divorces? A. The data for total numbers are harder to collect, so the rates are used instead. B. Total numbers in either category may increase or decrease due to an increasing or decreasing population, so the rates give better information about trends. C. Total numbers in both categories are constant, so the rates give better information about trends. D. Total numbers in both categories have gone down because of decreasing population, so the rates give better information about trends