Correct Answer - Option 1 : 1, 5, 3, 4, 2
The life stage of a person is first the newborn child is Infant then the childhood gets started after childhood the Adolescent start which is between 13 to 18 year and then Adulthood started then the final stage is old age.
1) Infant
5) childhood
3) Adolescent
4) Adult
2) Old age
Hence, '1, 5, 3, 4, 2' is the correct answer.