Although it is common for people to have different personalities, these personalities are usually based on previous encounters with the world and experiences gathered. Identical twins usually experience very similar if not the same things in their life so it can come as odd if they grow up with completely different personalities.
Explanation: there were many who wanted to follow isolationism arguing that the war was problem of Europeans, there were also those (many Americans were of European origin with their roots in different corners of the Old continent). Situation changed and USA (country of European origin and roots) entered the war and continued engaged in (especially) European security policy.
I believe the answer is B. There were more missions in South America than in Asia.
Explanation:
The Philipines for example which was under Spanish for several hundred years did not have as many Catholic Church missions as there were in Latin America.
Unions take advantage of collective bargaining and industrial action to increase their members' wages and otherwise change their working situation. Labor rights can also take in the form of worker's control and worker's self management in which workers have a democratic voice in decision and policy making.