Researchers have attempted to teach human languages to apes and African gray parrots,among others.What was one result of these interactions,based on the cases described in your text?
A)A chimpanzee successfully learned to vocalize a large number of words.
B)A chimpanzee became virtually fluent in the comprehension of English language.
C)An African gray parrot learned to engage in wide-ranging conversations on abstract topics.
D)A gorilla was trained to communicate in sign language.

Question

Quizplus · Accepted Answer

The text mentions teaching human language to apes and African gray parrots, but specifically notes that a gorilla was trained to communicate in sign language. This suggests that option D is the most accurate choice. None of the other options are mentioned in the text.

Researchers Have Attempted to Teach Human Languages to Apes and African