During which of piaget's stages does a person develop an awareness that things continue to exist even when they are not perceived?

Sensorimotor                            

Explanation:

Sensorimotor stage: In psychology, the term sensorimotor stage is considered to be a part of the cognitive development theory which was given by a famous psychologist named Jean Piaget.

The sensorimotor stage is the first stage in the theory of cognitive development and starts from the birth of a child and lasts through two years of age. In this period, a child learns to interact with the world around him or her by using his or her senses. The child generally relies on sucking, touching, feeling, and seeing to know about the surroundings.

In the question above, the given statement signifies the Piaget's sensorimotor stage.

answer; (b) ; /stronger bonds between the nations of africa