Answer:
Online class is way harder then offline class
Explanation:
It's are because the phrase economics is used as a plural term in the following sentence.
I'd say it was D or the last choice. It makes most sense to me.
Answer: The Three Big Questions strategy challenges readers to annotate in the margins by marking passages that answer the questions: "What surprised me?", "What did the author think I already knew?", and "What challenged, changed, or confirmed what I already knew?".
