나이를 먹는것과 텔로미어의 길이가 줄어드는 것에 대한 생리학 강의 내용인데요,

해당하는 강의 내용은 아래와 같습니다.

... The primary function of telomeres is to ensure that the genetic data contained in the main part of the DNA strand is, uh, accurately replicated during cell division. So, what scientists have discovered is that each time a cell divides, the telomeres of the new cells are slightly shorter than those of the original. Once the length of the telomeres has been reduced to a certain point, the likelihood of cell division errors increases dramatically. In fact, the cell might stop growing or even engage in a process of self-destruction. ...

문제는 아래와 같았습니다.

What is a feature of telomeres?

(a) They determine the physical appearance of a person.

(b) They act to fulfill precise duplication of genetic information.

(c) They prevent errors in cell division.

(d) They are rarely replicated during cell division.

답은 (b)였고, 저는 (c)를 선택해서 틀렸습니다.

왜 (c)는 답이 될 수 없는거죠? 스크립트를 보면 텔로미어의 길이가 줄어들면 세포분열의 오류가 증가한다고 했으니 텔로미어의 기능은 에러를 막는것이 아닌가요?