The correct answer is option 2: Superior and Huron.

To understand this, let`s first understand what the Soo Canal is. The Soo Canal, officially known as the St. Marys River, is a waterway that connects Lake Superior and Lake Huron. It is located between the Upper Peninsula of Michigan in the United States and the Canadian province of Ontario. The canal was constructed to bypass the rapids on the St. Marys River, allowing ships to easily traverse between Lake Superior and Lake Huron.

Option 1 (Superior and Michigan) is incorrect because Lake Michigan is not connected to Lake Superior via the Soo Canal. Lake Michigan is, however, connected to Lake Huron through the Straits of Mackinac.

Option 3 (Huron and Ontario) is also incorrect. While it is true that Lake Huron is connected to Lake Erie through the St. Clair River and Lake St. Clair, it is not directly connected to Lake Ontario.

Option 4 (Huron and Erie) is also incorrect. While Lake Huron does eventually flow into Lake Erie through the St. Clair River and Lake St. Clair, it is not directly connected to Lake Erie either.

In summary, the correct answer is option 2: