What are the three main economic systems in use at present?

a.) capitalism, communism, and supply and demand
b.) industrialism, socialism, and humanitarianism
c.)socialism, capitalism, and industrialism
d.) communism, socialism, and capitalism
e.)communism, elitism, and socialism

The sun a. will become a red giant within two to three million years b. is in its main sequence, which willlast thousands of years c. is in its main sequence, which will last billions of years. d. will explode as a supernova after its main sequence

How american was colonial art? to what extent does it illustrate the development of a new society

Which of the following statements concerning the effects of happiness is not true? select the best answer from the choices provided feelings of happiness generally lead individuals to demonstrate less care toward others. happy individuals are generally more playful than individuals who are not. research has linked levels of happiness to increases in creative problem solving. happiness, along with love, has been found to provoke prosocial behaviors.