Say a pill existed that made people selfless. After taking it they were only interested in others, not themselves. Under the coordination definition of economics: Multiple Choice there would be a social problem but not an economic problem. no economic problem would exist. there still would be an economic problem. there would be a political problem but not an economic problem.

The correct answer is letter "C": there still would be an economic problem.

Explanation:

Coordination, in Economics, refers to the set of actions different individuals take to satisfy their needs mutually. Problems arise in case there is not enough coordination of the individuals in an economy bringing lower benefits for them. For coordination to take place there must be a leader driving people's activities the most efficient way possible.

In the case of the example, after taking a pill that made people selfless, those individuals would still lack coordination because it would be difficult to determine which sector of individuals will be the priority for the satisfaction of needs. Therefore, even after the introduction of the pill,  that society would give an economic problem.

a progressive tax is a tax that imposes a lower tax rate on low-income earners compared to those with a higher income, making it based on the taxpayer's ability to pay. that means it takes a bigger percentage from high income earners than it does from low income people.