While Visiting a Zoo, 5-Month-Old Leo Is Frightened by a Roaring

Multiple Choice

While visiting a zoo, 5-month-old Leo is frightened by a roaring lion and starts to cry. By the time Leo is 1 year old, he appears to have forgotten this event and actually enjoys movies with lions. Based on memory research, how might you get Leo to exhibit the original fear response?

A) Show him a picture of a lion.
B) Bring him back to the zoo.
C) Have one of his brothers roar like a lion.
D) There is nothing you can do to generate the pervious reaction.