American educator and psychologist was influential in changing education in this country.

maria montessori
john dewey
clarence darrow
george rappleyea

answer; ///i believe that the correct answer is (b); ///the candidate must be a native born american citzen;

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44