In the 1930s, the Kelloggs Co-Reared Their 10-Month-Old Son Donald

In the 1930s, the Kelloggs co-reared their 10-month-old son Donald with a 7-month-old chimpanzee named Gua. As a result,

A) Donald copied many of Gua's behaviors.
B) Donald treated Gua like another human infant.
C) Gua grew up to be much less violent than most chimps.
D) Gua learned to speak a few words, though not clearly.