Which of these is a characteristic of a market economy?

A market economy functions under the laws of supply and demand. It is characterized by private ownership, freedom of choice, self-interest, buying and selling platforms, competition, and limited government intervention.

Explanation:

One of the most important characteristics of a market economy, also called a free enterprise economy, is the role of a limited government. Most economic decisions are made by buyers and sellers, not the government. A competitive market economy promotes the efficient use of its resources.

it should be c, women were allowed to vote in all states because federal law supersedes state law.

"states can make their own laws, as long as they don't contradict what the federal law states. the states do not have the authority to pass a law that negates a federal law." -google

the use of electrical signals that transit messages is know as