Concept:Concepts are built through two key mental processes: abstraction (identifying common features) and generalization (grouping similar experiences).
Explanation:A child first observes many examples, like different cats. From these observations, the child uses generalization to form a broad idea of “cat”.
Then, through abstraction, the child picks out the shared essential features (like having fur, four legs, and a tail) while ignoring differences.
These two steps together allow the child to create and refine concepts. Other steps like discrimination help separate concepts, but the core development relies on abstraction and generalization.
Answer:B. abstraction and generalisation