Brennan and Magness State a Number of Empirical Claims About

Brennan and Magness state a number of empirical claims about the effectiveness of gen-eds. Which of the following is one of their claims?

A) In other areas such as mathematics, most students actually see their skills decline after taking mandatory gen-ed classes
B) There isn't meaningful evidence of student improvement in critical thinking, complex reasoning, or writing in the first two years of college
C) Most students are unable to apply the meager skills that they do acquire to novel cases
D) Fewer than 2.5% of adults claim that they can speak a foreign language "very well" or "well" as a result of instruction at school
E) Brennan and Magness make all of the above claims