Which of the Following Is True with Respect to Language

Which of the following is true with respect to language ability in infants?

A) As young infants age, they introduce increasing numbers of sounds from their nonnative languages into their speech repertoire.
B) Young infants are naturally limited to producing the sounds found in their native languages.
C) Young infants can distinguish between more language sounds than can adults.
D) Young infants cannot produce as many language sounds as can adults.