The study of foreign languages is finally becoming a serious endeavor in U.S. education. The number of American college students enrolled in non-English language courses has increased by 20 percent over the last five years. Spanish, with over 500,000 students, is the most popular; its enrollment has increased by 30 percent. Meanwhile, enrollment in Japanese and Russian has nearly doubled, and now comprises eight percent of total foreign language study. Clearly there is now an increased interest in foreign language study. When these students join the work force, they will enhance not only U.S. businesses' ability to compete internationally but also our country's reputation abroad.
The answer to which of the following questions would be LEAST relevant to evaluating the above claims?
(A)Do students enrolled in foreign language classes continue their studies long enough to attain competence in those languages?
(B)By what percentage has overall enrollment in U.S. colleges and universities increased over the past five years?
(C)Does a significant number of students of foreign languages go into professions in which the ability to speak other languages is useful?
(D)Has the study of "dead" languages like Latin and Ancient Greek increased at a similar rate to that of modern languages?
(E)How does the percentage increase in foreign language enrollment over the past five years compare to previous increases in enrollment?

- Can someone please clarify regarding how to choose between D and E.

I did not choose D because as per me foreign language includes Modern language + dead language and if the rate of learning dead languages has been much more than modern language then even though the overall increase in language learning will not be relevant for the workforce.