The concept of manifest destiny was: ...the idea that Canada would quickly and automatically expand across the continent ,,the concept that if steps were not taken to expand the new country westward, western territories would be over-run by US interests ...that if Canada did not assert its military presence in the west that Britain would take control of the west. ...that the Canadian Pacific Railway would take ownership of the western territories Question 4 (1 point) 9. The American revolution a) Encouraged Canadian-West Indies trade because the Americans no longer qualified under the British Navigation laws b) Raised concern in Britain over the prospect of US northern expansion c) Was fuelled by British taxes on the American colonies d) All of the above.