Which of the following is an example of appeasement?
a. a nation invades a foreign territory and, in return, is attacked by other countries who feel threatened.
b. a nation invades a territory and the international community agrees to let them have it in exchange for a promise not to show any more aggression.
c. a nation invades a territory and is immediately met with economic sanctions (restrictions) meant to make them withdraw.
d. a nation decides to stake its claim to a territory by bringing its case before a court.