Answer:
The correct answer is b. Truman doctrine
The Truman Doctrine was an American foreign policy approach that was aimed at countering the influence of communism and Soviet geopolitical expansion by supporting pro-democratic countries against Soviet aggression. Countries such as Turkey and Greece were targeted.
Explanation:
a famous american an a wealthy man for telling the king about america
Nationalism had many effects in Europe. I'll give you three examples. First, it gave Europeans a feeling up superiority. It caused Germany Italy, and Russia to unify. Finally it led to an alliance system in Europe. <span />
Ok so this looks very hard but i am so sorry but i cant help i just dont know how to do this.