**Question:** True about total fertility rate -

a) Average number of children born to a woman during reproductive period
b) Average number of daughters born to a mother
c) Magnitude of completed family size
d) Average number of live births in a year per 100 women
e) Sum of age-specific fertility rates

**Correct Answer:**

**Core Concept:** Total fertility rate (TFR) is a demographic indicator used to evaluate a country's fertility rate. It is calculated as the average number of children born to a woman during her reproductive period.

**Why the Correct Answer is Right:**

a) Average number of children born to a woman during reproductive period - The total fertility rate represents the average number of children born to a woman during the entire duration of her reproductive period (typically 1500-1600 live births for a 45-year-old woman). This answer demonstrates the core concept of TFR, which is to understand the average number of children a woman is expected to have in her lifetime.

**Why Each Wrong Option is Incorrect:**

b) Average number of daughters born to a mother - The correct answer should focus on the average number of children born to a woman, not specifically daughters.
c) Magnitude of completed family size - Completed family size focuses on the desired family size, not the actual number of children born to a woman.
d) Average number of live births in a year per 100 women - This option measures the number of live births per 100 women per year, while TFR is the average number of children a woman is expected to have in her lifetime.
e) Sum of age-specific fertility rates - Sum of age-specific fertility rates represents the total number of children born in a specific age group, whereas TFR represents the average number of children born to a woman over her entire reproductive life.

**Clinical Pearls:**

Total fertility rate is an essential indicator for evaluating a population's growth rate and has implications for healthcare planning, family planning, and demographic studies. Understanding the correct definition of TFR helps in interpreting population trends and predicting future demographic patterns.

**Example:**

Suppose the total fertility rate of a country is 2.5 children per woman. This indicates that on average, a woman in this population will have 2.5 children during her lifetime. If a country's TFR is high, it suggests a growing population, while a low TFR indicates a declining population. This information is crucial for health and demographic researchers, policymakers, and healthcare providers.