Token stories of success and upward mobility (illustrated by Oprah: Ross Perot and Madonna) reinforce_ and perpetuate the myth that there is equal opportunity for all to achieve upward mobility in theUS. A- heterogeneityB. class structureC- economic diversityD- assimilation

Specialization—the division of labor—enhances productivity and efficiency by a) allowing workers to take advantage of existing differences in their abilities and skills. b) avoiding the time loss involved in shifting from one production task to another. c) allowing workers to develop skills by working on one, or a limited number, of tasks. d)all of the means identified in the other answers.