Okay, for the first one the anwser is D, for the second question the answer is B.
That wouldn't be considered taunting, the term for that would be an insult.
I think the reason why the summary need to be revised is : C. the summary lacks transitions that connect ideas
For example, we need to add transition between -enkai wanted to save his cattle- and -He grew a tree that bridged the sky and the earth-
3). life's unpredictability and urge people to enjoy their youth
For the 3rd one it would be D. You see the evidence when it says “to avoid having students gather in groups”
