Every time 5-year-old peter picked up his toys, his mother gave him a penny. after some time, she stopped giving him pennies to pick up his toys. over the next few weeks, peter gradually stopped asking for pennies. three months later, when peter picked up his toys, he asked his mother for a penny. in the given scenario, peter asking for a penny after a period of 3 months exemplifies latent learning. extinction. spontaneous recovery. reinforcement.

Spontaneous recovery.

Explanation:

Latent learning refers to a person learns something but doesn't show it immediately but at a later time when it is needed.

Extinction refers to a decrease in a certain behavior because the reinforcement was eliminated.

Spontaneous recovery is a situation in which a response that had been eliminated appears again.

Reinforcement refers to anything that encourages a certain behavior.

According to this, Peter asking for a penny after a period of 3 months exemplifies spontaneous recovery.