Answer:
What that's question please use only English
The answer is A
because immigrants are people who come to live permanently in a foreign country
To protect soldiers and supplies from US bombing the Vietcong built underground bunkers.
I believe the answer is there was no executive branch of government.
The difference between a federation and a confederation, is that in a confederation, it is more of loosely tied together states that can leave at any time. Just look at the EU with Brexit. The UK is exercising it's right to leave. In an example of a federation, look at the US. The states aren't allowed to claim independence because it is against the laws. It's also tied together under a firm federal center.
