I believe it meant both alien immigrants and non-alien immigrants? Is this the correct context, immigration? Or, does it mean extra-terrestrial life? I would need to see context to know for sure, but I believe it is referencing immigration.
1. This is the hardest question to answer of all of them. It depends on who you read. The New York Times has a different policy than the Huffington Post. I'll say it is intended to be true.
2. True. That's why they are called specialty shops.
3. Sometimes. There are other possibilities. I think you are intended to say true.
4. True. They do.
5. False. It's the other way around.
C. Inflation
If you require clarification on why, feel free to comment!