Answer:
c. Cho has an inherent understanding of how foreign languages work.
Step-by-step explanation:
The word "inherent" means something that is linked to an individual, something that is natural and that is strongly related to what the individual is. When Cho's teacher told her that she had a natural aptitude for learning foreign languages, she meant that Cho had something inside, intrinsic to who she is, that hampers her learning in foreign languages. In other words, Cho's teacher meant that Cho has an inherent understanding of how foreign languages work.