Step 1: Concept:
Arrange the stages of life in order of age and see which one starts at birth. The first stage in the list is the answer.
Step 2: Order of stages:
Birth to one year: infancy. Next, up to about three years: toddler years. Three to six or eight years: pre-school and early school years. Then the elementary school years. Adolescence comes much later.
Step 3: Use the passage:
The passage itself defines infancy as the period between birth and one year, and adds that the child is mostly dependent upon adults at this time.
Step 4: Eliminate:
Pre-school age begins after the infant and toddler years. Adolescence is a teenage stage. Elementary school age is for children who go to a regular school. None of these three begins at birth.
Step 5: Conclusion:
Only option 1 begins at birth and ends at one year.
Final Answer:
The correct term is infancy, option 1.
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