According to Research Presented by the Authors of Your Text

Multiple Choice

According to research presented by the authors of your text, humans' two closest primate relatives (sharing 98% of DNA with humans) are the __________, known for their aggressive nature, and the __________, known for their peaceful nature.

A) bonobos; chimpanzees
B) pygmy chimps; bonobos
C) chimpanzees; bonobos
D) bonobos; pygmy chimps