Answer:b. habituation
Step-by-step explanation:
What is habituation?
Habituation occurs when a stimulus is continuously introduced such that the response over time start to decrease .
The example may be when you first fall inlove with a song , you may start listening to it repeatedly and over time you may no longer feel the same excitement that you felt when you first listened to it.
Your response to it starts to decrease because it has become familiar to you .
This decrease in your response is known as habituation.
In this text above the cat was excited at first when the felt mouse was first tossed because it was still a new stimulus but over time the cat got used to it and probably got bored and stopped responding and that is habituation.