Answer: Amendment 10
I think you put the wrong numbers
But if you didn’t Amendment 9 is closer to 10
Here this is a chart were my teacher gave it to me and I think this will help you :
Nearly 90% of Canada's population lives within 100 miles of the border of the United States. The correct option among all the options that are given in the question is the last option or option "D. The main reason for such population density within a specific region is that the central and north of Canada are mainly desert and Tundra.
The answer that fits the blank provided above is PACIFIC OCEAN. It is around the Pacific ocean that the tsunami warning system provides protection along its coastal areas. This tsunami warning system is found in the Ford Island and initiates warnings to those areas along the said ocean.