Alguém bom em inglês pode me ajuda com essa questão?

25. Read the extract below and answer the questions that follow.
Children display an amazing ability to become fluent speakers of any language consistently spoken around them. Every normal human child who is not reared in virtual isolation from language use soon comes to speak one or more languages natively.
The child’s acquisition of his native language is not known to be dependent on any special tutoring. Some parents may try to “reinforce” their child’s verbal behavior with smiles or other rewards, or to bridge the gap between their mature linguistic competence and the child’s incipient one by means of “baby talk” but there is no particular reason to believe that such activity bears on the child’s ultimate success in becoming a native speaker of this parents’ language; children can pick up a language just as well by playing with other children who happen to speak it as they can through the concentrated efforts of doting parents. Little is known about the specific environmental factors that make it possible for language acquisition to occur, but the primary ingredient would appear to be merely sufficient exposure to language use in a social context.

According to the text, one can infer that a person raised in the United States speaks English principally because it is:

A) An international language.
B) The language of his parents.
C) A practical language.
D) The language spoken around him.
E) The language taught at school.