<span>D-They have accumulated a great deal of self-respect.</span>
The answer to your question is letter B. Huayna Capac did not establish the Inca Empire's rigid social classes. He built storehouses of food to nourish whoever was hungry. He doubled the empire's territory under his rule. He also improved roads, temples, had monumental cities and fortresses of stones.
The fact that it took 84 different tasks and the same number of people to build a ford car was an example of the "division of labor" and the "assembly line" system, since this helped ensure that each person was skilled at their job.