<span>a.magna carta is the answer</span>
Answer I believe the answer is A.
Explanation I believe this because they ended up being enslaved or killed for trying to resist
The code of laws encouraged people to accept authority of a king, who was trying to give common rules to govern the subjects' behavior.
Their isolation left them far behind Europe. To give a little bit of background information, the war started on July 7, 1937 to September 2, 1945. It all started because of the Marco Polo Bridge Incident which was a dispute that ended up turning into a battle.
Hope this helps!
The policy was isolationism