Answer:
The correct answer would be - the small brain and large canines of Ardipithecus
Step-by-step explanation:
According to Charles Darwin's Hunting Hypothesis about bipedalism hominins adapt bipedalism in order to free their hands to create and carry weapons.
According to this hypothesis, hominins like Ardipithecus were bipedal yet had a little mind and enormous canines, which blocked its capacity and need to make weapons. The advanced proof found from this fossil evidences of species and others shows that, in spite of Darwin's speculation, bipedalism originated before a decrease in canines and an expansion in mind size.
Thus, the correct answer is - the small brain and large canines of Ardipithecus