Multiple Choice
A researcher (Eibl-Eibesfeldt, 1963) raised rats in isolation. When other rats were finally introduced into their cages, rats raised alone __________, suggesting that __________.
A) could not defend themselves; aggression is learned
B) used the same aggressive behaviors as other rats; aggression need not be learned
C) did not aggress against them; instrumental aggression does not exist in nonhumans
D) fled from the new rats; aggression must be learned
Correct Answer:

Verified
Correct Answer:
Verified
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