A psychologist is an expert or specialist in psychology. Psychology is the study of the human mind and its functions.
The Chinese first emperor united China by force. He governed by the concept of legalism which advocated clear rules and heavy penalties as a way of enforcing the state authority. On the other hand the Roman emperors ruled with a concept of people are good and therefore need to be good.
The correct answer is D. People have unlimited wants and limited resources to fulfill them.
Explanation:
Scarcity is an economic concept that relates the existence of unlimited resources including natural and manufacture products to the human infinite desires. This is because this situation makes resources be scarce and pushes humans to make decisions about how to use the resources available, which affects other economic concepts such as demand, resources management, supply, competition, among others. According to this, the option that best defines this concept is D.