The Harlows and Their Colleagues Conducted Studies of Rhesus Monkeys

Multiple Choice

The Harlows and their colleagues conducted studies of rhesus monkeys that were "reared by" wire-mesh and terry-cloth surrogate mothers. According to this study, rhesus infants reared in solitary confinement ________.

A) fended off attacks by other monkeys.
B) later avoided other monkeys.
C) only extended their social contacts to older monkeys.
D) were overprotective of their offspring.