How Do Bilingual Children Compare to Socioeconomically Equivalent Monolingual Children

How do bilingual children compare to socioeconomically equivalent monolingual children with respect to language proficiency and acquisition?

A) Bilingual children fail to acquire normal levels of proficiency in either language.
B) Bilingual children show significant language delays when compared to monolingual children of the same socioeconomic status.
C) Bilingual children show no language delays, but do display lower levels of metalinguistic knowledge.
D) Bilingual children acquire normal levels of language proficiency and show some cognitive advantages.