【单选题】阅读文章,回答下列各题: People are used to speaking their nativelanguage,SOimmigrants are having many problembetween the first generation and the secondgeneration because they don’t have the same nativelanguage....
A.
Learning a second language.
B.
Immigrants who become sickin the U.S..
C.
Schools attended byimmigrants to the U.S..
D.
Language and its effect onthe identity of immigrants.