Liana, a 6-Month-Old Infant, Joshua, a 9-Month-Old Infant, and Sadie

Liana, a 6-month-old infant, Joshua, a 9-month-old infant, and Sadie, an 11-month-old infant, all live in English-speaking homes in English-speaking communities. Which of the babies is likely to be best at discriminating among sounds that are found in Mandarin Chinese but are not found in English?

A) Liana
B) Joshua
C) Sadie
D) Liana and Joshua are likely to be equally able to discriminate among Mandarin Chinese sounds, and
they will both be more able than Sadie.
•Joshua and Sadie are likely to be equally able to discriminate among Mandarin Chinese sounds, and
they will both be more able than Liana.
•The three babies are likely to be equally able to discriminate among Mandarin Chinese sounds.