The author says that "It would be unwise to require the universal use of English." One reason for this, according to the author, is that A. it is not clear yet whether requiring the universal use of English would promote or hinder the education of children whose English is limited B. the nation's Hispanic leaders have shown that bilingual education is most effective when it includes the maintenance of the Spanish language in the schools C. requiring the universal use of English would reduce the cohesion of the nation's Hispanic communities and leadership D. the question of language in the schools should be answered by those who evaluate bilingual education, not by people with specific political agendas E. it has been shown that bilingual education is necessary to avoid disadvantaging in their general learning children whose English is limited