1) a) News from numbers 2 and 4
b) news number 3,2,4
c) Researching more about what I'm seeing.

2) 1) In my opinion it is unreasonable
because apparently Trump would not do something like that.
2) Yes, I found the news on various sites.
3) Not all sites where news appears that are totally reliable.

3) 1) aren't reliable
2) Misleading people and making them believe these lies and with that, they can do what was said in the false news and risk their own lives and the lives of the people around them.
3) Researching enough about the subject before sharing.