It Has Been Proposed That Large Brains Evolved in Homo

It has been proposed that large brains evolved in Homo species because

A) large brains allowed better visual acuity, which was favored by natural selection.
B) genetic drift increased the frequency of large-brained alleles.
C) natural selection favored large-brained individuals because they were better in social interactions.
D) large-brained individuals were better able to outwit and escape predators.
E) evolution of a large brain was a consequence of evolution of overall larger body size.