The correct option is A Skull of baby chimpanzee
Bone structure and shape of baby chimp and infant baby skulls are very similar, with the classic huge head and tiny cute face we seem programmed to love. In adolescent chimpanzee and an adult human we can see the jaw start to lengthen in both and their overall similarity. The adult chimpanzee, who has a significantly larger and more powerful bite than any adult human. So, humans and chimpanzees appear to have very similar development in terms of bone structure as they grow up, except that humans just seem to stop at a certain point. There are a multitude of theories as to why this happens, but they all seem to follow the pattern of certain behaviours being selected for which affect the balance of hormones in the body that control the development of adult features. This is called neoteny. So, we can say in evolutionary terms, we are more related to skull of baby chimpanzee than apes, gorillas and adult chimp. Thus, option A is correct and other options are wrong.