【单选题】

It’s easy to trace the evolution of the automobilE.At most，we’re only talking about a few centuries of technological development，and most of the plans，prototypes and models are still arounD. With just a little research，you can easily trace the latest model electric hybrid back to its steam-powered ancestors.

A.Hominid and panin
B.Chimps and humans
C.Walking on two legs
D.Morphological and genetic studies