In Some Early Studies,researchers Attempted to Teach Chimpanzees to Speak

question 159

Multiple Choice

In some early studies,researchers attempted to teach chimpanzees to speak.What conclusions led to these studies being discontinued

• A) The reinforcement contingencies used in these studies were highly stressful for chimpanzees. 
• B) Chimpanzees lack the necessary vocal equipment to produce human speech sounds. 
• C) Chimpanzees lack the cognitive capacity to understand and produce language. 
• D) Humans are the only species capable of conscious communication.

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