Neanderthals is the closest relative to modern human. According to the study of evolution of man, neanderthals are the one with the closes facial structure and body structures to human.
Their higher classification is already considered as human.
Social norm deviance. They are making him do something that isn't socially acceptable. The others don't really make sense in this context anyways. Hope I helped :)
When it get smashes hard on the ground.
Hypothesis, is the answer