The correct answer is the area is not capable of intensive agricultural output
The Canadian shield is a shield and a vast geological region in northern Canada that encompasses the northern regions of Saskatchewan, Manitoba, Ontario and Québec, as well as most of Labrador the mainland of the province of Newfoundland and Labrador .
it was list of demands for King John
The answers to your question are,
A. Flat bottomed boats;
B. Carts driven by animals;
D. Seagoing vessels.
-Mabel <3
It's an example of independence value transmission.