The Harlow Experiments to Discover the Effects of Social Isolation

Multiple Choice

The Harlow experiments to discover the effects of social isolation on rhesus monkeys showed that

A) monkeys isolated for six months were highly fearful when they were returned to others of their kind.
B) isolated monkeys able to cuddle artificial mothers developed normally.
C) even several days of social isolation permanently damaged infant monkeys.
D) prolonged isolation had little effect on infant monkeys.