When the allocation of goods and services by a modern mixed economy is not efficient,
a) market powers can block beneficial gains.
b) monopolies can work to redistribute market equity.
c) governments may step in to resolve the market failure.
d) individuals of the markets can share equitable results.

C) governments may step in to resolve the market failure.

Explanation:

Nowadays, most economies around the world operate in a form of free market economy. While free market generally means that the market regulates itself, this does not mean that the government never intervenes. In fact, the involvement of the government can help in cases of market failure. This protects the economy of the country as well as the livelihood of the citizens.

the correct answer is individualism and exchange. at this stage, children begin to question the rules, because they can see that there is more than one side to them. different individuals have different viewpoints. they won't be able to reach this stage because of ignorance, a lack of ethics or personal biases. that is because people with that characteristiscs are not able to distinguish what is good or what is bad and they can't pursue their individual interests.

i honestly have no idea