Denotation is my best answer, sorry if its wrong.
Answer:
1) #4, to convince my audience that my idea is true or better than other ideas.
2) #2, a source your audience can trust
3) #2, positive product reviews, & #5 website popularity
4) #1, a U.S. immigration website with .gov at the end & #2, a website displaying copies of newspaper articles about immigration from 1987
Explanation:
I'm a bit unsure about 3 but here are my opinions using logical thinking/basic english facts! Hope this helps :)
