Final answer:
Canada is one of the world's largest exporters of wood products due to its extensive forests, which provide a comparative advantage over other goods.
Step-by-step explanation:
Canada is known for its abundant natural resources which form the foundation of its economy. Amongst its key exports, wood products stand out as a significant category. According to economic principles, countries should specialize in commodities for which they have a relatively lower opportunity cost. In Canada's case, this is lumber, as it has extensive forests that provide a comparative advantage in wood products over other goods. Therefore, it is known as one of the world's largest exporters of wood products. Hence, the answer to the question is C) Wood products.