영어 잘하는 익들 좀 도와주라ㅠㅠㅠㅠㅠ

The Academy which Plato established might possibly be considered the world’s first university. From it came his pupil Aristotle. Aristotle was (A) so/such a rich thinker that his historical influence is hard to define. What he wrote provided a basis for the discussion of biology, physics, art, psychology and politics. He provided ways of thinking about these subjects and flexible and broad approaches to (B) it/them . He also founded a science of logic which was not changed until the end of the nineteenth century. Aristotle agreed with his teacher Plato that the city-state was the best form of government. However, he differed from Plato in that he believed in the idea (C) that/which 

excellence lies in a balance between extremes. 

 

여기서 a,b,c안에 답이 뭐야?? 답이랑 왜 답인지 이유도 알려주라ㅠㅠㅠㅜ

[익인1]

A는 such (so는 그래서라는 뜻, such는 매우라는뜻)
B는 them (여기서 it/them를 말하는건 앞에말한 subjects 를 얘기하는건데 subjects는 복수니까 them이 맞음
C는 that 인거같은데..흐름상으로? 왜인지는 설명할수가없다ㅠㅠㅠ

[익인2]

아 첫번째 so도 매우라는 뜻이기도한데 so 담에 보통 형용사가 따르는데 이건 뒤에 a rich thinker가 붙어서 so는 안되는거야!

[글쓴이]

알려줘서 너무 고마워ㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠㅠ