Harry Harlow Presented Infant Monkeys with Two "Surrogate Mothers

Multiple Choice

Harry Harlow presented infant monkeys with two "surrogate mothers." One was a bare wire cylinder with a feeding bottle, and the other was a wire cylinder covered with soft terry cloth that had no feeding bottle. In his experiments ___________.

A) infant monkeys became attached to the bare wire mother
B) infant monkeys became attached to the terry cloth mother
C) infant monkeys did not become attached to either mother and showed strong symptoms of anxiety
D) some monkeys became attached to the bare wire mother, whereas others became attached to the terry cloth mother