It Has Been Proposed That Large Brains Evolved in Homo

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

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