I would say try to learn it every time also always test yourself, for a student and a adult teaching try to get the student happy because it the student is upset they won't get anywere. Hopefully that helps you ❤
I’m guessing C since the first excerpt is like a list of the regulations and the second excerpt mentions the “panic” of the regulations and the quarantine measures put in place hope this helps :)
A. researcher I believe because they need to stay up to date with the information concerning their business and those businesses like theirs