What is the surprising game change that is announced? why is it so odd that new rule has been added?

The surprising game change that was announced was that from that particular year, two tributes could be won as long as the two winners did not come from different districts. It was odd that a new rule had been added because there initially seemed no need of adding it.

Explanation:

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.