Answer:
B. The Canadian Shield
Step-by-step explanation:
The Canadian Shield, also called the Laurentian Plateau, is an area in Canada rich in natural resources, such as minerals, forests, and freshwater. It's one of the world's richest areas when it comes to mineral ores, and it's filled with deposits of nickel, gold, silver, and copper. In order to make the best use of these resources, many mining towns were built in this area, with the largest being Sudbury, Ontario. This is the region Ethan and his class would visit.