Correct Answer - Option 1 : 100 words
Any development process proceeds through some stages and each development stage differs from the other. Each stage of development has its characteristics. Psychologists, for the sake of convenience, have separated human life span into stages or periods and identified specific changes that may be expected during each stage. The transition from one stage to the next is. gradual rather than sudden.
| Age groups |
Stage of development |
| Birth - 2 years |
Infancy |
| 2 years to 6 years |
Early childhood |
| 6 years to 12 years |
Later childhood |
| 12 years to 18 years |
Adolescence |
| 18 years to 40 years |
Young adulthood |
| 40 years to 65 years |
Mature adulthood |
| over 65 years |
Aged adulthood |
The infant has knowledge of
- Few words by 15-18 months of age.
- Around 50 to 100 words by 2 years of age.
- Started forming sentences by age 2.
Infancy: Birth to 2 years
- In infancy, a baby develops extremely rapidly in various ways. Babies use their senses to learn to interact with the environment around them and their bodies grow stronger and mature.
- The first year of an infant is characterized by rapid physical growth. A normal baby doubles its birth weight in six months and triples it in a year.
- In infancy, children develop many elements of abilities to think and to understand the world around them. Infants are remarkably competent organisms, even on the first day of life
- Babies can feel interested, distress, disgust, and happiness from birth, and can communicate these through facial expressions and body posture.
- Infants begin showing a spontaneous “social smile” around age 2 to 3 months.
- The child takes part in the discussion. In the first year, the infant learns to discriminate speech sounds, an ability that helps in learning to speak later.
Thus, it is concluded that At the end of two years an infant has knowledge of around 100 words.
