Why were americans upset with great britain before the war of 1812? a. great britain closed its own ports but kept french ports open for u. s. trade. b. great britain removed its troops from the northwest territory. c. great britain's navy captured american sailors before the war began. d. great britain planned to attack the u. s. through canada.

The correct answer is: C) Great Britain's navy captured American sailors before the war began.

Because of the conflict between Great Britain and Napoleon Bonaparte's France, both countries tried to block the United States from trading with the other, which damaged and angered Americans deeply. Later on, to make things much worse, the Royal Navy of Great Britain took American sailors into the marine forces without notice to fight on its behalf. Both of these causes ultimately led to President James Madison's Declaration of War upon the British.

if you are on the computer you can not take a picture but you can upload one but i am not sure about phones but i'm pretty sure it's the but to upload one just click the paper clip looking thing/ link thingy thing and upload a pic