What is the most accurate statement about the modern age? a. the rise of the middle class and the wide availability of affordable automobiles led to the development of suburban areas. b. new technologies, greater demand, and increased incomes led to growth in the number of family farms. c. after world war ii, fewer children were born, leading to smaller families and more traditional value systems. d. following the war, american influence in the world decreased, and the nation became insular and protective.