The physical feature that makes up part of the border between canada and the united states is the
a.
great salt lake
b.
mississippi river
c.
rocky mountains
d.
great lakes

It would be d, the great lakes,

D.  Great Lakes, form a geographical divide between the US and the Canadian states.

Explanation:

The finger lakes of the US are the lake Michigan, Lake Erie, Lake Huron, and the lake superior. and thus shares a boundary with the binational states, which includes the Illinois, Indiana, Ohio, and Pennsylvania and the new york. These lakes were once a part of the glaciated landscape and thus consists of the freshwater reserves, and are hundred of feet in thickness, and have been a part of the advancing Palaeozoic sea. And these lakes are connected by the various seas and the other bodies of water. The Niagara River connects the lake Erie with the lake Ontario, comprising a fall of 326 feet and has a very recent origin. This suggests all these places were low lands in the geologic past and thus the features lakes make up the border of these two states.