19. At which stage given by Piaget is a child’s behaviour mostly determined by reflexes?
(1 ) Sensorimotor stage
( 2 ) Preoperational stage
( 3 ) Concrete operational stage
( 4 ) Formal operational stage
Ans- (1) sensorimotor stage
Reason:- Cognitive development at the sensorimotor stage lasts from the birth of a child till he/she attains two years of age.