Canada's borders include all of the following except
a. alaska.
b. arctic ocean.
c. greenland.
d. pacific ocean.

Canada shares a long land boundary with Alaska and a long boundary with the Arctic Ocean to the North.

It also has a very short boundary with the Pacific Ocean, around Vancouver.

It actually also shares a maritime (water) border with Greenland - although if we discount this kind of border, we can accept Greenland as the correct answer.

Answer steam fog;