In order to study the potential effects of social interaction on problem solving, some research participants were instructed to solve problems working together. other participants were instructed to solve problems working alone. those who worked alone were exposed to the condition.

Those who studied alone were exposed to the CONTROL condition.

Explanation: In an experiment, there are usually 2 conditions.

1.) The Natural condition

2.) The controlled condition

In this case, the controlled condition, the researcher is testing one person at a time as against testing with a group of people. This is to ensure that the researcher can adjust the conditions of the other experiment by studying just one person at a time.

the best answer is b.

hope this : )

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.