What is the correct age range for a child to be considered an infant?

The age range that classifies a child as an infant is usually recognized to include the period from birth to 12 months. This definition encompasses the whole first year of life, which is crucial for developmental milestones and health considerations. Since infants go through significant growth and developmental changes during these early months, it is important to include the entire range to ensure comprehensive care and understanding of their needs.

By identifying the correct age range as birth to 12 months, one encompasses a wide range of experiences and health needs that are unique to infants, which may differ significantly from those of toddlers or older children. Options that narrow this definition, such as those focusing solely on specific segments within the first year, would not fully represent the infancy stage.