When billy's upstairs neighbor wakes up early to take a shower, billy is typically awakened when the water starts, but then he gets used to the noise and falls back to sleep. in this example, billy is showing learning through:?

With the given situation above, Billy is showing learning though habituation. This is a way of having to adopt things that are happens constantly and previously in which the individual will likely diminish the emotional response and acts as if the stimulus is normal to occur.