Which of the following statements is correct regarding the evolution of humans? I. The skull of adult chimpanzee is more like adult human skull than baby chimpanzee skull. II. The skull of baby chimpanzee is more like adult human than adult chimpanzee skull. III. Dryopithecus is oldest human like fossil. IV. Dryopithecus was found in Miocene rock of Africa and Europe. The correct option is