As People Age, the Advantages of Bilingualism __________

As people age, the advantages of bilingualism __________.

A) become less noticeable as they struggle to use both languages
B) become less noticeable as more brain area is devoted to language centers and less to other functions
C) become more noticeable because the cognitive exercise delays the onset of degenerative brain disorders
D) become more noticeable because the enlarged language center of the brain decreases the other areas susceptible to degenerative brain disorders