Final answer:
The United States and Canada extend from the Arctic Ocean on the north to the Gulf of Mexico on the south and from the Atlantic Ocean on the east to the Pacific Ocean on the west.
Step-by-step explanation:
The correct option is A) Arctic Ocean on the north to the Gulf of Mexico on the south and from the Atlantic Ocean on the east to the Pacific Ocean on the west.
The United States and Canada span from the Arctic Ocean in the north to the Gulf of Mexico in the south, and from the Atlantic Ocean in the east to the Pacific Ocean in the west. This represents the geographical extent of both countries.