How is early childhood typically defined in terms of chronological age?

Early childhood is generally defined as the period from birth to around 6 years of age, capturing the significant developmental milestones that occur during these formative years. This definition encompasses various aspects of growth, including physical, emotional, cognitive, and social development. Defining early childhood as 1 to 6 years acknowledges that this stage includes key developmental transitions and the early years of schooling.

The chosen option aligns well with this established understanding, as it covers the entire range of experiences and transformations that children undergo from toddlerhood through preschool, making it a comprehensive view of early childhood. This period is critical for foundational learning and personality development, which sets the stage for future growth and learning. In contrast, the other options either start too late or end too early, thus missing important developmental phases that are vital for a complete understanding of early childhood development.