Question

What was the name given to the policy of giving aggressive nations what they wanted in order to avoid war?

Answer 1

I believe the answer is: B. Alliance pact.
Alliance pact is the last effort that made to maintain peace as long as the demand of the agressive nation still deemed as reasonable.
One example of this was when the alliance gave permission for Germany under hitler to place their millitary 'defense' at the border of neighboring countries.