Lack of concept of irreversibility is related to this stage of Piaget's Cognitive development [APTET-May.-2018-I]

Lack of concept of irreversibility is related to this stage of Piaget'

1.	Lack of concept of irreversibility is related to this stage of Piaget's Cognitive development [APTET-May.-2018-I]
A.	Sensory motor stage
B.	Pre-operational stage
C.	Concrete operational stage
D.	Formal operational stage
Answer» C. Concrete operational stage