Apes have been ________.
A) able to reach the linguistic skills of human adolescents
B) able to reach the linguistic skills of a 9- to 10-year-old child
C) unable to learn even the most simple linguistic skills, even with extensive formal training
D) able to reach the linguistic skills of a 2- to 2-1/2-year-old child

Question

Quizplus · Accepted Answer

Apes have been able to reach the linguistic skills of a 2- to 2-1/2-year-old child. While they are able to learn simple vocabulary and basic grammar, they are not able to reach the level of linguistic skills of human adolescents or even a 9- to 10-year-old child.

Apes Have Been ________