问题详情

In Paragraph 5, why does the author mention Homo Erectus and Homo Habilis？
A．To contrast them with modern humans.
B．To explain when human ancestors began to make tools.
C．To show that early humans were also predominantly right-handed.
D．To prove that the population of Neanderthals was very larg请帮忙给出正确答案和分析，谢谢！