Canada’s largest trading partner is the United States. Option D is correct.
United States: US$337.8 billion (75.1% of total Canadian exports).
The Dominion of Canada shares its extensive southern land border with its largest trading partner: the United States of America.
Besides, Canada's trading partners include:
China: $21.3 billion (4.7%)
United Kingdom: $12.6 billion (2.8%)
Japan: $10 billion (2.2%)
Mexico: $6.3 billion (1.4%)
South Korea: $4.5 billion (1%)
Germany: $3.7 billion (0.8%)
Netherlands: $3.7 billion (0.8%)
Canada shipped US$449.8 billion worth of goods around the globe in 2018.
