One challenge of socialism that both socialists and capitalists would agree on is
a. the high cost of socialist objectives.
b. its bureaucratic nature.
c. the role of central planners.
d. its emphasis on individual freedom.

The answer is c. the role of central planners. Even though they are different, the success of an economic system will depend on the central planners.  How well they implement their economic policies and how many benefit will determine whether or not their plans and programs are a success.

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.