What Was the Main Conclusion of the Study of Hermann

What was the main conclusion of the study of Hermann et al. (2007) ?

A) Human toddlers excel in the physical domain but not the social domain (relative to chimps and orangutans)
B) Human toddlers excel in the social domain but not the physical domain (relative to chimps and orangutans)
C) Human toddlers excel in both the physical domain and the social domain (relative to chimps and orangutans)
D) Human toddlers perform equivalently in both the physical domain and the social domain (relative to chimps and orangutans)