Which of the following can be taken as the most convincing factor for indicating the rapid increases in population growth of a country?

Options

A. Low mortality rate
B. High birth rate
C. Low replacement level
D. High population of young children

Answer

To determine the most convincing factor indicating rapid increases in population growth of a country, we will analyze the given options step by step.

### Step 1: Understand the Options
The options provided are:
1. Low mortality rate
2. High birth rate
3. Low replacement level
4. Population of young children

### Step 2: Analyze Each Option
- **Option 1: Low mortality rate**
- A low mortality rate means fewer deaths in the population. If fewer people are dying, the population will naturally grow, as more individuals are surviving to adulthood and potentially reproducing.

- **Option 2: High birth rate**
- A high birth rate indicates that many children are being born. While this contributes to population growth, it does not account for the number of children who may not survive due to high mortality rates.

- **Option 3: Low replacement level**
- A low replacement level suggests that the number of births is not sufficient to replace the population. This would not indicate rapid population growth, so this option is not convincing.

- **Option 4: Population of young children**
- A high population of young children does not guarantee that they will all survive to adulthood. Many factors, such as health and mortality rates, affect whether these children will contribute to future population growth.

### Step 3: Compare the Most Relevant Factors
- Between low mortality rate and high birth rate, both can contribute to population growth. However, a low mortality rate ensures that the population not only grows due to births but also retains individuals who can reproduce.

### Step 4: Conclusion
After analyzing all options, the most convincing factor for indicating rapid increases in population growth is:
**Low mortality rate.**