B. They relied on fishing since they lived close to the coast. The Northwest region, which includes present-day Washington, Oregon, and parts of Idaho, Montana, and Wyoming, had a mild and wet climate that supported a diverse range of plant and animal life. The indigenous people of the region, such as the Chinook, Nootka, and Tlingit, relied heavily on fishing for their food and livelihood. They developed sophisticated fishing techniques and built canoes and other tools to help them catch fish in the rivers and along the coast. They also traded fish and other resources with neighboring tribes.
