Understanding the benefits of an activity can . A. Increase your motivation to continue doing it B. decrease your effectiveness at getting those benefits C. decrease your chances of becoming injured doing it D. none of the above

Match the terms to their correct definitions. 1. childless couple a father or mother raising his or her children without another adult partner 2. foster family family created when a single parent marries another partner 3. single-parent family parents who have children live with them temporarily 4. blended family several related people who were born in different eras and are living together 5. multigenerational family a couple who has no kids