Which 4 of the following were effects of the industrial revolution? question 1 options: a. people began to settle in the 'new world'. b. all industrial countries returned to being monarchies. c. social and political reform movements sprang up to improve conditions. d. labor unions formed to improve working conditions. e. all industrial countries became socialist countries. f. united states, germany, and great britain became industrial powerhouses. g. united states gained their independence. h. demand for new markets and raw materials which led to imperialism.