Answer:
class inclusion.
Step-by-step explanation:
Class inclusion: In psychology, the term "class inclusion" was discovered by one of the famous psychologists named Jean Piaget and is described as an individual's or students' capability of classifying different objects into two or more than two categories at the same time. It is often denoted as a child's mastery related to the "structure of hierarchical classification" by Jean Piaget.
In the question above, the given statement demonstrates that Andrew understands the concept of class inclusion.