Final answer:
The three Prairie provinces in the West are Alberta, Saskatchewan, and Manitoba, which are key agricultural regions in Canada.
Step-by-step explanation:
The three Prairie provinces in the West are Alberta, Saskatchewan, and Manitoba. These provinces are known for their extensive farmland, particularly for large grain and beef operations. Unlike British Columbia, which is located west of the Rocky Mountains, or Ontario and Quebec, which are situated in central and eastern Canada respectively, the Prairie provinces lie in the interior plains of the country. Alberta, Saskatchewan, and Manitoba are central to Canada's agricultural industry and contribute significantly to its economy.
Answer: b. Alberta, Saskatchewan, Manitoba