In figures, the font should be between ___ and ____ point font

According to Hartzell and Hoddie, why does the introduction of peacekeepers in the bargaining process contribute to the likelihood of success?

a. Peacekeepers serve as trusted liaisons between enemies. b. Peacekeeper presence reduces the necessity to quickly reach agreement. c. Peacekeeper presence makes bargains to share or divide power with an enemy appear less risky. d. Introducing peacekeepers reassures parties to the dispute about their security to enable them to contemplate compromises with their adversaries. e. Presence of peacekeepers heightens the possibility of winner/loser scenarios

Proliferation optimists base their case on the assumption that

a. nuclear powers will eventually agree to eliminate their weapons. b. nuclear weapons would be no more destructive than modern conventional weapons. c. very few nations are likely to acquire nuclear weapons. d. nuclear weapons substantially raise the potential costs of war.