Your brief note makes me think of the Seeds of Peace Camp which began in the USA, in 1993. John Wallach had the idea for the camp, and proposed it at a state dinner that included leaders from Israel, Egypt and Palestine. He challenged them to send 15 teens from each of their countries to the new camp he was establishing in Maine, which would become known as the Seeds of Peace Camp.
One of the successes of the Reconstruction era was the Thirteenth, Fourteenth, and Fifteenth amendments.
Representative democracy
the kind we theoretically have
The correct answer is 3) They help Congress to use judicial review to address the constitutionality of laws.
The congress doesn't do judicial review, the Supreme Court does. The Supreme court decides whether laws are constitutional or not, and they do it after the laws have been passed. They don't have an advisory role that comes before the law's been passed.