According to c. wright mills, president donald trump, bill gates, and a ceo of a large company are all members of the

Power Elite

Explanation:

As a modern masterpiece of social science and social criticism, The Power Elite was first published in 1956.

C. Wright Mills explores and criticizes the power hierarchy in the United States, attracting attention to three closely interlocking power branches: the military, business, and political elite.

The Power Elite could be perused as a good summary about what was going on in America when it was published, however today its underlying question of whether America is as democratic as it is in practice remains very important.

i would say b. research typically uses a variety of sources

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .