Answer:
"Sensorimotor Stage"
Explanation:
Based on Gambriella's behavior we can say that she is in the middle of the "Sensorimotor Stage" of cognitive development. Jean Piaget's is the doctor that developed the cognitive theory of development. According to Dr. Piaget this stage applies to children 2 years old or younger. This Stage is when a child learns about objects through his/her senses and physical interactions with that object.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.