Answer:
Assimilation.
Step-by-step explanation:
The Piaget explain his theory of cognitive development to understand the human development. Different stages of cognitive development are sensorimotor stage, concrete operational stage and pre operation stage.
The Assimilation may be defined as a type of cognitive process by which the individual can attain the new information. He can also mix the new information with the already existing information. The tendency of the human to adapt according to the new information is explained by Piaget in the form of assimilation.
Thus, the answer is assimilation.