In relation to the cognitive development theory, piaget proposed that the concrete operational stage lasts from approximately years of age.

a) 6-10 b) 7-11 c) 8-12 d) 9-12

b) 7-11                                                  

Explanation:

Jean Piaget has proposed the cognitive development theory in which he has mentioned four different stages of an individual's life including the sensorimotor, preoperational, concrete operational, formal operational stage.

Concrete operational stage: In cognitive development theory, this is considered as the third stage and starts from the seven years of a child's age and lasts through eleven years i.e, the middle childhood period. The concrete operational stage is distinguished as the development of a child's logical thought, cognitive limitations, conservation, etc.

In the question above, the given statement signifies the age between 7-11.

a is the final ! : )

answer; (true);