Human life chronology — choose the meaningful order from birth to end of life: a) Birth b) Death c) Childhood d) Infancy e) Adolescence f) Adulthood g) Old age

Introduction / Context:
Arrange life stages in a natural timeline from start to end, including common social-developmental phases.

Given Data / Assumptions:

• Stages: Birth → Infancy → Childhood → Adolescence → Adulthood → Old age → Death.
• Generalized sequence; exact ages vary across cultures.

Concept / Approach:
Use biological development and common sociological markers to order stages logically.

Step-by-Step Solution:
Begin with Birth (a).Infancy (d) follows immediately after birth.Childhood (c) precedes adolescent changes.Adolescence (e) is the teenage transition.Adulthood (f) comes next.Old age (g) follows adult years.Death (b) closes the sequence.

Verification / Alternative check:
Public-health timelines and education stages mirror this order.

Why Other Options Are Wrong:

• Options starting with death invert the timeline.
• Placing adulthood before adolescence is illogical.

Common Pitfalls:
Mixing social events with biological stages; here, only life phases are considered.

Final Answer:
a, d, c, e, f, g, b