Which of the following behaviours characterise the 'concrete operational stage' as proposed by Jean Piaget?

Options

A. Hypothetico-deduction reasoning, propositional thought
B. Conservation, class inclusion
C. Deferred imitation, object permanence
D. Make-believe play, irreversibility of thought

Answer

B

Explanation

In cognitive development theory, Jean Piaget, a swiss psychologist, recognised concrete operational stage as the third stage that is characterised by abilities of conservation, reversibility, transitivity and class inclusion. Herein, conservation is understood as the ability to understand that something stays the same in quantity even if its appearence changes. Class inclusion refers to the ability to classify and identify things into various different categories.