3 is the answer to the question
Many people believed that the Church needed to be reformed. In the 1500s Kings such as Charles V had a sole political strategy: centralisation. However, there were people who do not agree with this. So, the reformation led to warfare because of different ideas by the ruler and his people.
The correct answer is statement #1.
Before Nazi Germany invaded Poland, Europeans followed a policy of appeasement. Appeasement is a policy that involves being passive towards the actions of another country. This was exemplified by the Munich Agreement in September of 1938. This agreement allowed Germany to take over parts of Czechoslovakia. The goal was to please Hitler so that he would not invade other countries. However, this appeasement policy had the opposite effect.
Correct answer would be C