18. 주어진 글 다음에 이어질 글의 순서로 가장 적절한 것은?
To be sure, human language stands out from the decidedly restricted vocalizations of monkeys and apes. Moreover, it exhibits a degree of sophistication that far exceeds any other form of animal communication. -------------- (A)That said, many species, while falling far short of human language, do nevertheless exhibit impressively complex communication systems in natural settings. (B)And they can be taught far more complex systems in artificial contexts, as when raised alongside humans. (C)Even our closest primate cousins seem incapable of acquiring anything more than a rudimentary communicative system, even after intensive training over several years. The complexity that is language is surely a species-specific trait.
- 1(A)-(B)-(C)

- 2(B)-(C)-(A)

- 3(C)-(A)-(B)

- 4(C)-(B)-(A)
