Hmmm ONTARIO
9 U.S states and 1 Canadian province.
Ontario is the province that has the border containing four Great Lakes. Ontario, Erie, Huron, Superior
The U.S. Canadian border
Two. Ontario and Quebec.
Just Ontario, specifically the southern bit.
Michigan is bordered by 4 of the 5 great lakes. They are Lakes Huron, Ontario, Michigan and Superior.
The Provinces of Quebec and Ontario are north of the Great Lakes.
All of them.
You can boat the entire Great Lakes system. 4 of the 5 Great Lakes constitute the border between Canada and the USA. Chicago is the farthest point from the Canadian border, so it would take a long time to get there.
Only the province of Ontario borders on the Great Lakes. None of the other provinces or territories do so. What we know as Lake Michigan is entirely within the USA, but hydrologically Lakes Michigan and Huron are actually just one body of water that has two large lobes. As such, there are really only four Great Lakes.
The five lakes you are inerested in are the Greta Lakes. Only Lake Michigan is entirely in the US. Lakes Superior, Huron, Erie and Ontario straddle the US/Canadian border. There is a sixth lake in the group (St. Clair) which is considerably smaller, it is also on the border.