
Passage: Cross-species studies of animal populations have shown that cubs who are isolated from their mothers within a month of birth often show strong aggression. For example, when looking for food, he is aggressive and fighting for food, while other cubs give in and he is still fighting for food. The hypothesis that explains this phenomenon is that the aggressive problem is due to the lack of social training guided by parents at the newborn stage.
Question: Which of the following options, if true, will most strongly strengthen the above argument?
A. A.The antelope isolated from its mother in the early stage showed great aggressiveness in the conflict to establish its dominant position in the population.
B. B.Chimpanzees who grew up in the socialized training environment of their parents were much less aggressive in mating conflicts than chimpanzees who did not grow up in this environment.
C. C.Babies who are adopted in the first three months of life often behave aggressively in childhood.
D. D.Many polar bears are more aggressive in food conflicts than in mating conflicts.
Answer: