Sarah, an infant of seven months, loves repeatedly hitting a toy that lights up and plays music on impact with her toy hammer. sarah is in piaget's substage of:

In this substage, the youngster turns out to be more centered on the world and starts to deliberately rehash and repeat an activity with a specific end goal to trigger a reaction in environment. For instance like in the given case hit it to get a specific reaction.

nobles

explanation:

someone who has high morals and ideals or people who are royalty or who have good breeding. an example of noble is a person who is always honest and charitable. an example of noble is a king.