The answer to your issue is A
I believe that the choice we have is between "inform", "persuade", "entertain", etc: and I would say that here the purpose is to persuade. It's not an objective sentence only giving information, rather it tries to persuade people to choose this product over another one.
Hi there!
There are different formats of citing a URL, and it varies by your area or school district.
Here are a couple if types :
-MLA citations
-only link
-college citations
It's best to ask a teacher at your school what citation method they prefer. Different schools and districts require different formats.
Hope this helps!
The answer is b, modifiers