The correct answer is infancy
Infancy is the period of growth that goes from birth to puberty, that is, from zero to twelve years of age.
Childhood Developments
Early Childhood (0 - 3 years)
All senses work at birth;
Rapid physical recovery and development of motor skills;
Ability to learn and remember, even in the first weeks of life;
Rapid development of comprehension and speech;
Development of self-awareness in the second year of life;
Formation of attachment to parents and others at the end of the first year;
Increased interest in other children.
Second Childhood (3 - 6 years)
Increased strength and simple and complex motor skills;
Predominance of egocentric behavior, but with increased understanding of the perspective of others;
Illogical ideas about the world due to cognitive immaturity;
Play, creativity and imagination become more elaborate;
Increased independence, self-control and self-care;
The other children start to become important, but the family is still the core of life.
Third Childhood (6 - 12 years)
Decreased physical growth;
Improvement of strength and physical ability;
Decreased self-centeredness;
He begins to think logically, although predominantly in a concrete way;
Increased memory and language skills;
Improving the ability to take advantage of formal education through cognitive gains;
Development of self-image, which affects self-esteem;
Friends become of fundamental importance.