It is a completely false statement that big spenders are also known as low yield tourists, because they typically expect air conditioned hotels with English speaking staff and imported food from their home country. The correct option among all the options that are given in the question is the second option.
I think it is called polders because that is what netherlands, called them.
Vancouver is about as far west as you can go in Canada. It would never serve as a link to the Great Lakes nor would it be an Atlantic Ocean Port. Try Halifax for that.
Saskatoon and Regina could probably use Vancouver as a link; probably wheat and grains would be shipped to the Orient through Vancouver. But Regina and Saskatoon are in the mid west.
The best answer is A Pacific Ocean Port. It is almost right on the Pacific.
I believe the answer to your question is C