At what age range do infants demonstrate understanding through their inborn reflexes, according to Piaget?

According to Piaget's theory of cognitive development, infants in the age range of 0 to 1 month exhibit understanding primarily through their inborn reflexes. During this stage, which is referred to as the Sensorimotor Stage, infants are reliant on instinctive reflexes as their primary means of interacting with the world around them. This includes reflex actions such as sucking and grasping.

At this early age, infants have not yet begun to engage in intentional actions; rather, they respond to stimuli through innate behaviors. These reflexes serve as the foundation for later cognitive development as infants begin to build more complex understanding and actions in subsequent stages.

As infants grow older, in the subsequent months, they start to develop motor skills and begin to perform intentional actions, moving into the later stages of the sensorimotor phase where more interactive understanding occurs. Therefore, the period of 0-1 month specifically emphasizes the role of reflexive actions in early cognition, making it the correct choice.