Ineed asap will give brainiest which of the following best describes the united states?

a) it has a market economy with no government regulation. this is the only system that can work with a government run by the people.

b)it has a command economy. a large nation like the united states needs the government to control all growth of business to prevent problems.

c)it has a traditional economy. most communities are focused on providing their own needs with the resources available in the local area.

d) it has a mixed economy. the government protects individual rights, such as minimum pay for work and choices in goods and services.

How did european immigrants of the late 1800s change american society

"“forty or fifty years ago, many people thought that simply transferring technologies from industrialized to developing countries would close the technology gap. now we know that technologies developed in industrialized countries may not be suitable for use in other environments. they may require a particular type of infrastructure to operate. they may need specialized parts or knowledge to mend when they break we now understand that innovative capacity must be built in different ways." - united nations secretary-general ban ki-moon based on the secretary general's comments, which of these would be most important for a country to improve? a) native literature b) transportation grid c) cultural traditions d) construction styles

The symbols found on the map below indicate where fossils have been found in the same layer of sediment. each unique symbol represents fossil locations of a particular species.