The period of infancyhood is

Correct option is D

The period of infancyhood typically refers to the first two years of life, a critical stage in human development. During this period, infants experience rapid physical, cognitive, and emotional growth, learning fundamental skills like motor coordination, language acquisition, and social bonding.
Information Booster:
· Infancy is marked by rapid physical growth, with infants doubling their birth weight by about 5 months and tripling it by the end of the first year.
· Infants also develop motor skills, starting with reflexes and progressing to actions like crawling, standing, and walking.
· Cognitive development in infancy includes the beginnings of object permanence (understanding that objects continue to exist even when not visible).
· Language development begins with babbling and progresses to the understanding of basic words and simple sentences by the end of infancy.
· Socially, infants begin to form attachment bonds with caregivers, which are critical for later emotional and social development.
· The brain undergoes significant development during this period, particularly in the areas related to sensory processing, motor coordination, and emotional regulation.
Additional Information:
· (a) From 12 years to 18 years – This refers to adolescence, not infancy.
· (b) Upto 15 years – This is an inaccurate range for infancy, as it extends into childhood.
· (c) From birth to 6 years – This refers to early childhood, which follows infancy and extends into the pre-operational stage of cognitive development.