Both in what is now the eastern and the southwestern Un...
单项选择题Both in what is now the eastern and the southwestern United States, the peoples of the ArBoth in what is now the eastern and the southwestern United States, the peoples of the Archaic era （）
And grinding nuts and other plant foods, that could be adapted to newly cultivated foods． By the end of the Archaic era,people in eastern North America had domesticated certain native plants, including sunflowers weeds called goosefoot, sumpweed,or marsh elder and squash or gourds of some kinD．These provided seeds that were important sources of carbohydrates and fat in the diet． dig holes． It has been suggested that sunflower, sumpweed,and other plants almost domesticated themselves, that is , they thrived in human –disturbed habitats, so humans intensively collected them and began to control their distribution． Women in the Archaic communities were probably the main experimenters with cultivation, because ethnoarchaeological evidence tells us that women were the main collectors of plant food and had detailed knowledge of plants． The passage mainly discusses which of the following aspects of the life of Archaic peoples A．The principal sources of food that made up their dietB．Their development of ground stone tool technologyC．Their development of agricultureD．Their distribution of work between men and women
