Canada Became an Important Battleground in the War of 1812

Canada became an important battleground in the War of 1812 because

A) it was the economic hub of the New England economy.
B) Canadians would be willing to help the Americans overthrow the imperial yoke of British rule.
C) British forces were weakest there.
D) most of the American regular army was already located in Canada.
E) Canada held important strategic military bases from which the Americans could attack the British.