For the first question, I think the answer among the choices is option A. The Mound Builders are the native people who dug hundreds of miles of irrigation channels. For the second item, I think the correct answer among the choices is option B. The group whose constitution shows that women had a strong voice in government was the Oneida nation. For the third item, the correct answer would be option D. The larges eMoore of the early American civilizations was the Olmec.