Which of the following are macro-environmental changes? A. Americans are a mobile people, with about 9 percent of all U.S. residents moving each year. B. The "traditional" U.S. household long consisted of a husband, a wife, and choldren (and sometimes grandparents). In the United States today, however, fewer than half of American households contain married couples, down from 76 percent in 1940. C. The U.S. population is becoming better educated. For example, in 2021, 91 percent of the U.S. population over age 25 had completed high school and 38 percent had a bachelor's degree or better, compared with 66 percent and 16 percent, respectively, in 1980. D. Answers A, B and C are macro-environmental changes E. None of the above are macro-environmental changes