Efforts to teach sign language to great apes have
A)been more successful than efforts to teach spoken language.
B)been about as successful as efforts to teach spoken language.
C)been less successful than efforts to teach spoken language.
D)not been successful at all.

Question

Efforts to teach sign language to great apes have 
A)been more successful than efforts to teach spoken language. 
B)been about as successful as efforts to teach spoken language. 
C)been less successful than efforts to teach spoken language. 
D)not been successful at all.

Quizplus · Accepted Answer

Great apes have shown a greater ability to learn and use sign language compared to spoken language, as their vocal apparatus is not suited for producing human speech sounds.

Efforts to Teach Sign Language to Great Apes Have