Final answer:
Wampum is an item not introduced by Europeans to Native Americans; it is a traditional Native American craft, unlike glass beads, copper kettles, and metal tools that were brought by Europeans.
Step-by-step explanation:
The item that Europeans did not introduce to Native Americans is A. wampum. Wampum refers to traditional shell beads that are part of Native American culture, particularly among Eastern Woodlands tribes of the Northeastern United States and the Great Lakes region. In contrast, Europeans introduced various other items to Native Americans upon their arrival, which included B. glass beads, C. copper kettles, and D. metal tools. These items were often used for trading and greatly affected the economic and social aspects of Native American societies.