Given below are four sentences in jumbled order. Pick the option that gives their correct order.
A. New research, however, has found that bilingual children speak their first fifty words and so on, at the same age as children who only speak one language.
B. Until fairly recently, parents and teachers feared that introducing children to a second language when they were very young could delay their language skills.
C. Furthermore, there is no evidence that children confuse the two languages.
D. In addition, there were fears that bilingual children would become confused in their use of language.