Home › フォーラム › iTELLian’s Lounge › 06. iTELL (international Test of English as a Logical Language) › Listening › Physical Sciences 01 – Jane Goodall › Q3. What reason does the speaker give for the passing-on of the tool use between generations of African chimpanzees?
(A) Genetic imprinting
(C) Top-down teaching
(D) Cultural evolution
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