Analyze the impact that major events have on immigration politics, as seen throughout history. Which answer is correct?

1. Major events, such as wars and refugee crises, can sway opinions toward excluding immigrants. For example, refugees to the u.s. after World War II and refugees to Europe during the 2015 crisis encountered an exclusionary environment despite their situation.

2. Major events, such as wars and refugee crises, can sway opinions toward welcoming immigrants. For example, refugees to the u.s. after world war II and refugees to Europe during the 2015 crisis both encountered a welcoming environment due to their situations.

3. Major events, such as wars and refugee crises, can sway opinions toward welcoming or excluding immigrants. for example, refugees to the u.s. after world war II found a more welcoming environment that refugees to Europe during the 2015 crisis did, despite the similarities between their situations.

4. Major events, such as wars and refugee crises, can way opinions toward excluding immigrants. However, refugees to the u.s. after world war II and refugees to Europe during the 2015 crisis both encountered a welcoming environment due to their situations.​