题目选项分析

A one-million-year-old skull bearing traits associated with both Homo erectus and Homo sapiens has been found in the Afar region of Eritrea, indicating that modern humans developed much earlier than previously thought.

A one-million-year-old skull bearing traits associated with both Homo erectus and Homo sapiens have been found in the Afar region of Eritrea, which indicates that modern humans developed much earlier than previously thought.